更多"All of the dental instruments need "的相关试题:
[单项选择]All the music instruments in the orchestra will be ______ before it starts.
A. civilized
B. chattered
C. chambered
D. chorded
[单项选择]
Passage One
All that we really need to plot out the future of our universe are a few good measurements. This does not mean that we can sit down today and outline the future course of the universe with anything like certainty. There are still too many things we do not know about the way the universe is put together. But we do know exactly what information we need to fill in our knowledge, and we have a pretty good idea of how to go about getting it.
Perhaps the best way to think of our present situation is to imagine a train coming into a switch yard(调车场). All of the switches are set before the train arrives, so that its path is completely determined. Some Switches we can see, others we cannot. There is no ambiguity (不明确) if we can see the setting of a switch; we can say with confidence that some possible futures will not materialize (实现) and others will. At the unseen switches, however, there is no such certainty. We know the train will take one of the trac
A. A statement illustrated by an analogy.
B. A hypothesis supported by documentation.
C. A comparison of two contrasting theories.
D. A critical analysis of a common assumption.
[单项选择]I hope you ______ all the materials I need for tile class before I come and teach here tomorrow.
A. prepare
B. have prepared
C. will prepare
D. will have prepared
[单项选择]All that I need______a large sum of money with which to buy my wife a diamond ring.
A. are to be
B. is
C. are
D. were
[单项选择]Which of the following instruments was widely used before the seventeenth century
A. The harpsichord
B. The spinet
C. The clavichord
D. The organ
[单项选择]The purpose of the "special instruments" mentioned in the third paragraph_________.
[单选题]One group of flight instruments operates on the principle of pressure differential to provide the pilot with speed, rate of climb or descent, and altitude, this group is referred to as the _______ instruments.
A.gyroscopic
B.pitot-static
C.altitude
D.attitude
[单项选择]______ with enough instruments necessary for the experiment, these scientists are expecting to finish it ahead of time.
A. To be supplied
B. To supply
C. Supplying
D. Supplied
[单项选择]（）we need air and water, so do we need criticism and self-criticism.
A. Even though
B. So long as
C. Just as
D. Now that
[单选题]Which of the following is not included in gyroscopic instruments?
A.Turn coordinator
B.Attitude indicator
C.Magnetic compass
D.Heading indicator
[单项选择]______ we need air and water, so do we need criticism and self-criticism.
A. Even though
B. So long as
C. Just as
D. Now that
[单选题]The three gyroscopic instruments are _______ .
A.turn coordinator, altimeter and magnetic compass
B.turn coordinator, attitude indicator, and magnetic compass
C.vertical speed indicator, attitude indicator, and heading indicator
D.attitude indicator, heading indicator, and turn coordinator
[单选题]The pitot-static instruments operate on the _______ principle.
A.gyroscopic
B.Newton's
C.Bernoulli's
D.pressure differential
[单选题]The pitot-static system includes three instruments, they are _______ .
A.altimeter, vertical speed indicator, and ground speed indicator
B.airspeed indicator, vertical speed indicator, and heading indicator
C.vertical speed indicator, altimeter, and airspeed indicator
D.tachometer, odometer, and vertical speed indicator
[单项选择]
We need to conduct extensive background research on the firms from（）we received bids.
A. which
B. where
C. that
D. when
