运输定价中，下列属于成本导向定价法的有( )。 A．成本加成定价法 B．边际贡献定

1) If you s________ something bad, you are in a situation where something painful happens to you.

2) She looks young, but she's __________ (实际上) 50 years old.

3) Luckily, nobody was killed in the accident and the i________ has been taken to a hospital.

4) The car was a _________ (便宜货) at that price.

5) He gave the children some chocolate to r________ them for behaving well.

6) The headmaster gave the _________（信号） to begin.

7) One cannot s_________ unless he tries hard.

8) She closed her eyes and ____________ (装作) to be asleep.

9）His order is really c__________ and I don’t know exactly what to do next.

10) She accepted his _____________(邀请) to join him for lunch.

标有“3V 1W”字样的灯泡L，接在电压不变的电源上恰好正常发光，设灯丝电阻不随温度变化．

求：

（1）灯丝电阻R_L；

（2）通电5min，灯泡消耗多少电能；

（3）若L与一个电阻R₁串联后接到该电源上，灯L的实际功率为0.81W，求R₁=______Ω．

原发性甲亢患者，行甲状腺大部切除后12小时突然高热、烦躁、呕吐、脉速，可能是下列哪种原因引起（）

A.术后上感

B.吸入性肺炎

C.术后严重反应

D.甲状腺危象

E.切口内出血

下列财务报表中，被称为“第一会计报表”的是（）。

A、资产负债表

B、利润表

C、现金流量表

D、所得税表

北京时间比格林尼治时间(世界时)早8小时，即北京时间=世界时+8小时。( )