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【多选题】
具有挥发性的是A.
单萜
B.
倍半萜
C.
薁类
D.
二萜
E.
二倍半萜
F.
具有挥发性的是
G.
单萜
H.
倍半萜
I.
薁类
J.
二萜
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反馈参考答案：
举一反三
【单选题】I don’t know _________.
A.
what is the matter with him
B.
what the matter is with him
C.
what with him the matter is
D.
what the matter with him is
【单选题】What is the matter with Mary? -
A.
She has a bad cold.
B.
She is reading.
C.
she is a student
【单选题】What is the matter with Ben?
A.
He has a toothache.
B.
He has a sore back.
C.
He has a cold.
【单选题】I wanted to know _____. [ ]
A.
what is the matter with him
B.
what the matter is with him
C.
what was the matter with him
D.
what the matter was with him
【简答题】目前，即时通信系统通用的协议主要有______协议集和XMPP协议集两个代表。
【单选题】What is the matter with you?
A.
I'm glad
B.
I have a cold
C.
I have something to do
D.
Sorry, I don't know
【简答题】EPC网络，控制面协议主要基于GTP-C和 Diameter,用户面主要基于()协议。
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