None of the ship’s papers（）. A.has expired

如图所示的实验中，小烧杯①盛的是紫色石蕊溶液，②盛的是浓盐酸。片刻后，可以观察到烧杯①中液体的颜色是

A．紫色

B．红色

C．无色

D．蓝色

在三个密闭容器中分别充入Ne、H₂、O₂三种气体，当它们的温度和密度都相同时，这三种气体的压强(p)从大到小的顺序是[ ]

A．p(Ne)＞p(H₂)＞p(O₂)

B．p(O₂)＞p(Ne)＞p(H₂)

C．p(H₂)＞p(O₂)＞p(Ne)

D．p(H₂)＞p(Ne)＞p(O₂)

“应付票据”是指企业购买材料、商品和接受劳务供应等而开出的银行汇票。

促销员要加强哪些服务的专业化训练？

Woman: So you finally listen to your wife’s advice and give up smoking.
Man: It was my doctor’s advice. I’m suffering from high-blood pressure.
Question: What do we learn from the conversation().

A. The man no longer smokes.

B. The man is under pressure from his wife.

C. The man usually follows his wife’s advice.

D. The man refuses to listen to his doctor’s advice.