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【单选题】
下列试验属于絮状沉淀试验的是A.
外斐试验
B.
TRUST
C.
RPR
D.
IBT
E.
SRID
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反馈参考答案：
举一反三
【单选题】Please tick the correct pronouciation of "receipt"
A.
['risi:t]
B.
[ri'si:t]
C.
[ri'sept]
D.
[ri'set]
【简答题】Listen to the dialogues and tick the correct answers.
【多选题】tick the correct statements according to the picture
A.
It is a sleeper compartment.
B.
It is an ordinary sleeper compartment.
C.
There are usually six berths in an ordinary sleeper compartment.
D.
The berths are divided to lower berth, middle berth and upper berth.
【多选题】Listen again and tick the correct information.
A.
Children are allowed to stay there.
B.
You have to bring your own sleeping bags.
C.
You don’t have to pay extra for the sauna.
D.
The minimum stay is two nights.
【简答题】电力系统在稳态运行时必须保持无功功率的平衡,电力系统供给的无功功率不足会导致节点电压()。列举三种电力系统中的无功功率电源()。
【简答题】Listen to the conversation and tick the correct answers.
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