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【单选题】
自由下落的液滴所受的单位质量力为。A.
fx=0，fy=0，fz=0
B.
fx=0，fy=0，fz=-g
C.
fx=0，fy=0，fz=g
D.
fx=0，fy=0，fz=2g
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【单选题】A test in industrial psychology is used to find out ______.
A.
a worker's achievement
B.
a worker's potential for a certain job
C.
a worker's psychological problem
D.
a worker's motivation for a certain job
【单选题】A test in industrial psychology is used to find out______.
A.
a worker's achievements
B.
a worker's potential for a certain job
C.
a worker's psychological problem
D.
a worker's motivation for a certain job
【单选题】Lisa finished __________ her homework a moment ago. [ ]
A.
doing
B.
to do
C.
did
D.
does
【简答题】目标客户群的购买能力,一般通过___________或______________及_______________来界定。
【单选题】关于肋骨骨折,下列哪项是错误的
A.
第1~3肋骨较短，且有锁骨、肩胛骨和肌肉的保护，很少发生骨折
B.
第4~7肋骨较长且固定，不易折断
C.
第8~10肋骨与胸骨直接相连，弹性较大，较不易折断
D.
第11~12肋骨前端游离，不易折断
E.
儿童的肋骨富于弹性，不易折断的情况
【单选题】With no rain for three months and food supplies _out, the situation here is getting from bad to worse. [ ]
A.
run
B.
running
C.
to run
D.
to be run
【单选题】What can Lisa do if she'd like to get along well with her roommates?
A.
Lisa can communicate more with her roommates.
B.
Lisa had better aviod talking with her roommates.
C.
Lisa had better stay alone.
D.
Lisa can try to go home.
【单选题】关于肋骨骨折,下列哪项是错误的:
A.
第1～3肋骨较短，且有锁骨、肩胛骨和肌肉的保护，很少发生骨折
B.
第4～7肋骨较长且固定，不易折断
C.
第8～10肋骨与胸骨直接相连，弹性较大，较不易折断
D.
第11～12肋骨前端游离，不易折断
E.
儿童的肋骨富于弹性，不易折断
【单选题】What did Lisa remember about her father?
A.
She could only recall that he was small and thin.
B.
She had a vague memory about her father.
C.
She remembered that he had been ill for long.
D.
She forgot about her father completely.
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