9-2

A. Next Monday afternoon.
B. This upcoming Friday.
C. Tomorrow afternoon.
D. By the weekend.

9-3

At the bus stop.
B. At the school gate.
C. In the dining hall.
D. In the teacher’s office.

9-4

A. RMB 66.00
B. RMB 56.00
C. RMB 46.00
D. RMB 36.00

9-5

At the airport.
B. At the post office.
C. Behind a desk.
D. Beside an ATM.

For many of us, college is the first time we share our living space with someone else. If you follow these three _____1_____, it can be a very rewarding experience.Always communicate with your roommate. Establish open lines of communication _____2_____. If someone is bugging you, don’t _____3_____ to let him or her know. Be up front and assertive, but _____4_____. And keep in mind that it’s always easier to deal with problems sooner than later.Respect your roommate’s space. Be respectful of your roommate’s _____5_____. Ask permission before you borrow things that _____6_____. Don’t forget that only part of the room _____7_____. And always lock the door, even if you’ll be back in a minute.Remember the golden rule. Treat your roommate how you would like to _____8_____. That’s the golden rule. Getting along with your new roommate can be _____9_____ one, two, three!

单独使用以下哪种醛会发生羟醛缩合反应？

A. 甲醛
B. 丁醛
C. 苯甲醛
D. 丙烯醛

在消费者商品购买的影响因素中，首推第一的是（）

A. 服务
B. 价格
C. 质量
D. 造型

第一个采用问卷调查的方法，就消费者对商品广告及其所介绍商品的态度与看法进行研究的人是（ ）

A. 凡勃仑
B. 斯科特
C. 盖尔
D. 约翰•华生

下列说法正确的是（ ）。

A. 变压器短路试验的目的是为了测取变压器的Rk，Xk，Zk；
B. 变压器带纯电阻负载时，当负载电流增加，输出电压一定不变；
C. 变压器中铁耗为可变损耗，因为它随电源电压而变；
D. 变压器中铜耗为不变损耗，因为折算时保持它不变。

下列说法正确的是（ ）。

A. 变压器短路试验的目的是为了测取变压器的Rm，Xm，Zm；
B. 变压器额定运行时是效率最高点；
C. 变压器带电阻电容性负载，当负载电流增加时，输出电压可能会增加；
D. 变压器纯电阻负载时，当负载电流增加，输出电压一定不变。