超星 - 作业（2） - 查题吧

单选题

What was more worrying was a box of used syringes that hadn't been properly ________.

A. discarding
B. discarded
C. disgusted
D. disgusting

单选题

The manager wants to ________ the question more thoroughly before making a decision.

A. explore
B. expose
C. export
D. expedite

单选题

Our income is now double ___________ it was ten years ago.

A. what
B. which
C. when
D. that

单选题

My secretary leaves us next week, so we are advertising for a ______.

A. replacement
B. supplement
C. agreement
D. compliment

单选题

You must make sure that your sales figures ______ with your receipts at the end of each week.

A. match up
B. match against
C. match in
D. match to

单选题

A secretary was hired to relieve her ________ some of the administrative work.

A. from
B. in
C. of
D. out of

单选题

The fashionable remarks of today often become the ______ expressions of tomorrow.

A. commoner
B. commonplace
C. commander
D. commonage

单选题

已知某正弦电流的频率f=50Hz，初相角j=30°，在t=0时其值为i(0)=10A，则该正弦电流表达式可写作()。

A. i=10sin(50t+30°)A
B. i=14.14sin(50pt+30°)A
C. i=20sin(100pt+30°)A

单选题

含R，L的线圈与电容C串联，线圈电压URL＝50V，电容电压UC＝30V，总电压与电流同相，则总电压为()

A. 20V
B. 40V
C. 80V

单选题

The Catholic church, other ______ groups and many people concerned about the use of humans for medical experiments have condemned cloning.

A. evil
B. wicked
C. religious
D. pessimistic

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