题干
—I will have an important test tomorrow. I feel stressed now.
—__________ and believe youself. You will pass it.
A：I'm sorry to hear that
B：Sure, I'd love to
C：Ok.
D：Take it easy.
答案(点此获取答案解析）
D
C2H4(g)在降低温度时平衡向右移动，则下列两个反应： C(s)＋1/2H2(g)