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【判断题】
流程框图是化工工艺流程图中最简单、最粗略的一种。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】lt ________ for four days when we arrived, so the roads were very muddy.
A.
was raining
B.
would he raining
C.
had been raining
D.
has rained
【单选题】It ______ for four days when we arrived, so the roads were very muddy.
A.
was raining
B.
would be raining
C.
had been raining
D.
has rained
【单选题】It for four days when he arrived, so the roads were very muddy.
A.
was raining
B.
would be raining
C.
had been raining
D.
has rained
【单选题】Was your journey to Hawaii pleasant last summer? No, it _________ for one week when we arrived, so the roads were very muddy.
A.
has rained
B.
was raining
C.
has been raining
D.
had been raining
【单选题】I am standing under Hammersmith Bridge looking at something I have known all my life as a Londoner but am beginning to realise that I don't have a clue about. The River Thames has been here a lot long...
A.
what causes the muddy surface of the River Thames
B.
what children can learn about the history of the River Thames
C.
the diversity offish in the River Thames
D.
what was there under the River Thames
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