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【简答题】
恋爱时,大脑会分泌旺盛的化学物质 ,使人执着与痴狂,但这不是真正的爱。恋爱“脑疯”期一般来说:男性 ,女性为 。
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举一反三
【简答题】调压站设置调压器的并联装置的作用是什么?画图说明该装置的工作原理。
【简答题】The "thumbs up" sign in many countries (show) _______ happiness.
【单选题】已知下列反应的标准平衡常数分别为: H 2 (g)+S(s)=H 2 S(g) K 1 Θ , O 2 (g)+S(s)=SO 2 (g) K 2 Θ , 则反应 H 2 (g)+SO 2 (g)=H 2 S(g)+O 2 (g) 的平衡常数为
A.
K 1 Θ - K 2 Θ
B.
K 1 Θ × K 2 Θ
C.
K 2 Θ / K 1 Θ
D.
K 1 Θ / K 2
【多选题】Many people all over the world use their bodies as well as their voices to communicate. Two very common examples are the thumbs-up sign, to mean "OK", "fine" or "good" and the thumbs-down gesture to m...
A.
This is exemplified by thumbs-up sign, to mean "OK", "fine" or "good" and the thumbs-down gesture to mean the opposite.
B.
I would like to illustrate the point with the examples of thumbs-up sign, to mean "OK", "fine" or "good" and the thumbs-down gesture to mean the opposite.
C.
For example, thumbs-up sign means "OK", "fine" or "good" and the thumbs-down gesture has the opposite meaning.
D.
Thumbs-up to mean "OK", "fine" or "good" and the thumbs-down gesture to mean the opposite.
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