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【多选题】
化工工程计算的基本关系有:A.
物料算
B.
能量算
C.
平衡与速率
D.
以上均不是
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皮皮学刷刷变学霸
举一反三
【单选题】Why were you so late for work today? to the office was very slow this morning because of the traffic accident.
A.
Drive
B.
Drove
C.
Driving
D.
That driving
【单选题】---Why were you so late? --- I had a hard time ___ up this morning.
A.
a. to get
B.
b. get
C.
c. got
D.
d. getting
【单选题】--- Why were you so late? - I had a hard time _________ up this morning.
A.
to get
B.
get
C.
got
D.
getting
【单选题】—Why were you so late this morning? —I _____ in heavy traffic for an hour on the way here.
A.
have been caught
B.
have caught
C.
had caught
D.
was caught
【单选题】听力原文：W: Why were you so late? M: The train was scheduled to leave at half past six, but it was delayed three hours due to the rain. Q: When did the train leave? (12)
A.
6: 30.
B.
8: 00.
C.
9: 30.
D.
3: 30.
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