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【单选题】
为便于计数,输人通道的作用是将任意输入信号整形为计数器所需的( )A.
三角波信号
B.
锯齿波信号
C.
脉冲波信号
D.
正弦波信号
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举一反三
【单选题】听力原文：M: Have you picked up your ID card from the office yet? W: No, the camera for taking photos was broker. Q: Why hasn't the woman gotten her ID card? (13)
A.
She was unable to have her picture taken.
B.
She has not chosen a picture for it.
C.
She had broken her camera.
D.
She had gone to a photography class instead.
【简答题】活性染料的结构可以用下列通式表示：S-D-B-Re，其中，D代表（），B代表（），Re代表（）。
【单选题】What does the woman think about her lifestyle?
A.
She has got a lot of trouble with it.
B.
She feels it is unnatural.
C.
It’s gotten easier with time.
【简答题】Stowage factor
【简答题】活性染料的结构可以用下列通式表示:S-D-B-Re,其中,S代表 , D代表 ,B代表 ,Re代表 。
【单选题】The stowage factor should be calculated（）.
A.
before the stowage plan is made
B.
when the stowage plan is made
C.
after the stowage plan is made
D.
before loading
【简答题】翻译：bad stowage=improper stowage：A. “积载不良/不当”
【单选题】Read the paragraph below from the introduction [paragraphs 1-4]. Kelly Zimmerman helped set up the Facebook page. She says Emma loves the letters. More than 50,000 people have sent letters. What infor...
A.
the reason Emma loves dogs
B.
the number of letters Emma has gotten
C.
why Emma is in the hospital
D.
how therapy dogs help sick people
【单选题】She has been________ the running race because she did not win any of the practice races.
A.
prohibited from
B.
eliminated from
C.
removed away
D.
gotten rid of
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