【判断题】交运行李,手提行李及邮件中允许有例外数量的危险品。
【简答题】光隔离器,实现光波正向传播、________。
【单选题】Sandy's work is going well, and __ he will send me the plan.
【判断题】Sandy’s parents didn’t work out a way regarding their concern.
【单选题】关于热力学第三定律说法正确的是:
A.
在温度趋向于0K时,等温反应过程中体系熵值不变。
C.
人为规定各元素的完整晶体在T → 0K时S=0
【单选题】下列有关热力学第三定律的下列说法中,那些是错误的:①T→0K ,任何物质之间化学反应的△S→0②不能用有限的步骤使一个物体的温度达到0K③T→0K时,任何纯物质的完善晶体的熵的绝对值趋于0④人为规定各纯物质的完整晶体在0K时的熵值为0
【多选题】下列有关热力学第三定律的下列说法中,那些是错误的:
A.
T→0K , 任何物质之间化学反应的△ rS θ →0
C.
T→0K 时 , 任何纯物质的完整晶体的熵的绝对值趋于 0
【单选题】Why did Jonda have to work quickly when she was trying to save Sandy?
A.
Because Sandy was seriously hurt.
B.
Because the car window was broken.
C.
Because Sandy had already become unconscious.
D.
Because she could collapse soon.
【单选题】听力原文:W: Do you walk to work every day? M: No, it's too far to walk. There is a bus going right by my house. But when it rains or when the bus is crowded, I do wish I had a car. Q: How does the man usu...