超星 - Unit 2-Complete the sentences

单选题

__is the study and use of electrical devices that operate by controlling the flow ofor other _ charged particle in devices such as vacuum tube and semiconductors.

A. electrons electronics electronically
B. electronic electronics electronically
C. electronics electrons electronically
D. electronically electrons electronic

查看答案

单选题

One of the best known computer which are very widely used in research, design and training is the flight upon which pilots receive much of their training.

A. simulation simulator
B. simulator simulate
C. simulating simulator
D. simulate simulation

查看答案

单选题

It follows that we can use the one table tor the standard normal for all calculations involving normal __________.

A. varying
B. variates
C. variation
D. various

查看答案

单选题

There are two approaches to measuring the of random variables around their central values. The most important such measure is the, a weighted sum of sequential differences between the possible values and the mean.

A. variation varying
B. varyingvariation
C. variance variation
D. variation variance

查看答案

单选题

Signals are sent to to_.

A. amplifyingamplifiers
B. amplifiersbeamplified
C. amplifiersamplify
D. beamplifiedamplifiers

查看答案

______is the study and use of electrical devices that operate by controlling the flow of____or other _____ charged particle in devices such as vacuum tube and semiconductors.

One of the best known computer ____ which are very widely used in research, design and training is the flight ____upon which pilots receive much of their training.

It follows that we can use the one table tor the standard normal for all calculations involving normal __________.

There are two approaches to measuring the ____of random variables around their central values. The most important such measure is the____, a weighted sum of sequential differences between the possible values and the mean.

Signals are sent to____ to_____.

__is the study and use of electrical devices that operate by controlling the flow ofor other _ charged particle in devices such as vacuum tube and semiconductors.

One of the best known computer which are very widely used in research, design and training is the flight upon which pilots receive much of their training.

There are two approaches to measuring the of random variables around their central values. The most important such measure is the, a weighted sum of sequential differences between the possible values and the mean.

Signals are sent to to_.