题目内容
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The(70)provides the project manager with the authority to apply organizational resources to project activities．
A．project management plan
B．contract
C．project human resource plan
D．project charter
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●Applications put computers to practical business (67) ，but below the (68) it's the heart of an operating system-the kernel-that provides the technical wizardry to juggle multiple program，connect to networks and store (69) ．
A traditional kernel provides all the functions for applications．The kernel (70) memory，I／O devices and parcels out processor time．
The kernel also supports security and fault (71) ，which is the ability to recover automatically when parts of the system fail．
(67) A．used
B．use
C．apply
D．applied
(68) A．earth
B．bottom
C．table
D．surface
(69) A．graphics
B．data
C．text
D．image
(70) A．manages
B．manage
C．managed
D．managing
(71) A．error
B．question
C．tolerance
D．problem
Most computer systems are(66)to two different groups of attacks: Insider attacks and outsider attacks. A system that is known to be(67)to an outsider attack by preventing(68)from outside can still be vulnerable to the insider attacks accomplished by abusive usage of(69)users. Detecting such abusive usage as well as attacks by outsides not only provides information on damage assessment, but also helps to prevent future attacks. These attacks are usually(70)by tools referred to as Intrusion Detection Systems.
A．vulnerable
B．week
C．sensitively
D．helpless
Estimating schedule activity costs involves developing an(69)of the costs of the resources needed to complete each schedule activity. Cost estimating includes identifying and considering various costing alternatives. For example, in most application areas, additional work during a design phase is widely held to have the potential for reducing the cost of the execution phase and product operations. The cost estimating process considers whether the expected savings can offset the cost of the additional design work. Cost estimates are generally expressed in units of(70)to facilitate comparisons both within and across projects.The(71 )describes the business need, justification, requirements, and current boundaries for the project. It provides important information about project requirements that is considered during cost estimating.
A．accuracy
B．approximation
C．specification
D．summary
A．choice
B．read
C．important
D．software
E．hardware
The kernel is the(66)of an operating system such as Windows98, Windows NT, Mac OS or Unix. The kernel provides basic services for the other parts of the operating system,(67)it possible for it to run several programs at once(multitasking), read and write files and connect to networks and peripherals. Applications and utility programs use the services provided by the kernel to provide practical business functionality.
In operating systems such as Windows or most versions of Unix, the kernel(68)everything except application and utility programs.
In microkernel operating systems such as Digital Unix and Apples forthcoming Mac OS Server, the kernel(69)supports only multitasking and memory management. Other services such as applications, utilities and the user interface support device drivers, API and graphics which all(70)outside the microkernel.
A．nucleus
B．center
C．core
D．heart
The main energy foods are the carbohydrates (碳水化合物). These are sugars and starch (淀粉). Wheat and rice are rich in starch and many fruits and vegetables contain considerable amount of sugar. Sweets, honey and jam are also rich in sugar.
Like carbohydrates, fats are food that provides us with energy. Butter, margarine, certain types of fish, eggs, cooking oils and most red meats are rich in fats. Fats can be stored in various parts of the body as reserves of energy. Because fats in general are slowly digested, they satisfy hunger for long periods.
Proteins (蛋白质) are very complex substances. The body needs proteins for the growth of new cells and for the repair and replacement of old cells. Foods rich in proteins are essential to a balanced diet. Milk, some vegetables, meat, chicken, fish, cheese, grains and nuts are some foods rich in proteins.
A good diet will contain a variety of foods so that the body contains all the minerals it needs for good health.
Vitamins are necessary for the proper working of the body. If we eat a variety of foods, we can be sure of obtaining all the vitamins we need.
Water makes up about 70 per cent of the weight of the human body. The average adult needs about two liters of water daily to replace the water the body loses.
If equal weight of the following substances is “burned” in the body, the largest amount of energy is produced by().
A、carbohydrates
B、fats
C、vitamins
D、mineral salts
A.about
B.for
C.with
The auditing function that provides feedback about the quality of output is referred to as ().
A、quality control
B、quality planning
C、quality assurance
D、quality improvement
