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【单选题】
动力黏性系数M的单位是Pa.S，用M、T、L表示M的量纲是( )。A.
M2L-1T-1
B.
M1L1T-1
C.
M1L-1T-1
D.
M1L-1T1
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【单选题】—Doctor, I caught a bad cold, and I had a sore throat. —How long _____ like this? [ ]
A.
did you
B.
were you
C.
have you been
D.
had you been
【单选题】I caught a ______ of the car before it disappeared around the corner of the street.
A.
gaze
B.
stare
C.
look
D.
glimpse
【单选题】_________ 查看材料
A.
I caught a bad cold last week.
B.
All you need now is a good， long rest.
C.
Have you seen the doctor?
D.
I don't want to give the bug to anyone in the office.
【单选题】I caught a ______ of the taxi before it disappeared around the corner of the street.
A.
vision
B.
glimpse
C.
look
D.
scene
【单选题】_________ 查看材料
A.
I caught a bad cold last week.
B.
All you need now is a good， long rest.
C.
Have you seen the doctor?
D.
I don't want to give the bug to anyone in the office.
【简答题】实验报告-7.doc
【简答题】发动机冷却水的最佳工作温度一般是（）。
【单选题】My father caught a big fish this morning, but I caught a _______ one. I feel great!
A.
smaller
B.
biggest
C.
bigger
D.
big
【单选题】When I ______home, I caught a thief stealing from a passer-by.
A.
headed
B.
was heading
C.
has headed
D.
had headed
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