在物品市场上，利率与国内生产总值成同方向变动。

There are times when people are so tired that they fall asleep almost anywhere. We can see there is a lot of sleeping on the bus or train on the way home from work in the evenings. A man _____1_____(fold) the newspaper, and seconds later, ______2______ appears as if he is trying to eat it. Or he will fall asleep on the shoulder of the stranger _____3______ (sit) next to him. Another place where unplanned short sleep goes on is in the lecture hall  _____4______ a student will start snoring（打鼾）so ____5______(loud) that the professor has to ask another student to keep the sleeper awake. _____6_____ more embarrassing situation occurs when a student starts falling into sleep and the weight of the head pushes the arm off the desk, and the ____7______ (move) carries the rest of the body along. The student wakes up on the floor ___8_____ no memory of getting there. The worst time to fall asleep is when driving. Police reports are full of accidents that occur when people fall into sleep and go __9____ the road. If the drivers are lucky, they are not seriously hurt. When people are really tired, _10____ will stop them from falling asleep ---- wherever they are.

葡萄糖的分子式是 （   ）

A  C₆H₁₂O₆            B C₅H₁₀O₅             

C  C₄H₈O₂             D C₃H₆O₂

如果某可转换债券面额为3000元，转换价格为20元，当股票的价格为15元时，则当前该债券的转换价值为( )元。

A．15

B．2985

C．2250

D．3000

患儿8岁。发热2天，伴咽痛、皮疹1天，查体：T38.7℃，咽部充血，草莓舌，面部潮红，躯干部可见细小鲜红色充血性皮疹，诊断为猩红热，治疗首选（）

A.红霉素

B.头孢唑林

C.青霉素

D.磷霉素

E.氯霉素

我国学校体育最早出现于（）社会。

A.原始

B.奴隶

C.封建

D.资本