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【单选题】
奶牛结核病检疫时,常用( )进行检测。A.
试管凝集反应试验
B.
环状沉淀反应试验
C.
补体结合试验
D.
变态反应试验
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反馈参考答案：
举一反三
【简答题】What do we learn from the conversation7 [ A] Tim Smith isn't in right now. [B] The caller dialed the wrong number. [ C]Tim Smith is busy now.
【简答题】ABB的标准I/O板提供的常用信号有哪些类型的信号?
【单选题】What time is it now according to(根据) the two speakers?
A.
7:30.
B.
0.319444
C.
0.347222
【单选题】— Oh, it’s 7:15 now. I’ll have classes at 7:30, Mom. —
A.
Class is over.
B.
It’s time for you to leave now.
C.
What’s wrong with you?
D.
How is it going with you?
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