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【单选题】
叶定律中的负号表示热流方向与（）方向相反。A.
流动
B.
导热
C.
对流
D.
温度梯变
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反馈参考答案：
举一反三
【判断题】If the salesperson says：“This is the only one we have. If you don’t buy it today ,you won’t see it tomorrow ....”He is using the deadline.
A.
正确
B.
错误
【单选题】下列关于窦房结 P 细胞 4 期自动去极化机制的叙述,错误的是
A.
Na+ 内流进行性增强
B.
K+ 外流进行性衰减
C.
Ca2+ 内流进行性增强
D.
Cl- 内流进行性衰减
【单选题】If the salesperson says;”This is the last one....”he is using :
A.
the deadline
B.
appeal to a higher authority
C.
scarcity
D.
a last -minute claim
【判断题】If the salesperson says;”I will call my boss to see if this price is OK....”He is using :the deadline
A.
正确
B.
错误
【单选题】Speaker A: Lily, your English is so good Speaker B: ___.
A.
Thank you
B.
I am happy
C.
I like English
【判断题】If the salesperson says：“This is the only one we have. If you don’t buy it today ,you won’t see it tomorrow ....”He is usingscarcity .
A.
正确
B.
错误
【单选题】If the salesperson says：“This is the only one we have. If you don’t buy it today ,you won’t see it tomorrow ....”He is using :
A.
the deadline
B.
bullying
C.
appeal to a higher authority
D.
scarcity
【单选题】Speaker A: Lily, your English is so good Speaker B: ___. A. Thank you B. I am happy I like English
A.
Thank you
B.
I am happy
C.
I like English
【判断题】If a guest says that the wine he is ordering is too expensive, you may tell him, “this is the cheapest here.”
A.
正确
B.
错误
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