当肋间肌和隔肌收缩时，下列各项正确的是（ ） ①胸腔容积缩小 ②胸腔容积扩大 ③

根据短文内容，完成下列各题。

     Because there are so many bikes, cars and buses on the roads all the time, it is very important for riders

 to remember the traffic rules.

     Young children may not ride bikes in the streets, because there are so many cars and buses that it is

dangerous. A rider should keep one hand on the handlebars (把手) at all times. You should ride on the

right of the road. Like a driver of a car or a bus, you must follow all traffic signs. Everybody knows

that you must not turn left or go across at a red traffic light. Usually you can turn right, but you shouldn't

ride too fast.

     If you want to turn or stop, you must give a sign to other riders.

1. It's very important for riders to remember the _____ _____.

2. It's _____ for young children to ride bikes in the streets.

3. You should ride _____ _____ _____ of the road.

4. When you ride, you must follow all _____ _____.

5. Riders can turn _____ when the traffic lights are red.

赵州桥的设计者是 [ ]

A．毕异

B．鲁班

C．蒯祥

D．李春

下面关于病因三角模型的论述，正确的是

A．它是目前最科学的病因观
B．它强调宿主因素在发病中的作用
C．疾病是三大因素相互作用的结果
D．它强调环境因素在发病中的作用
E．它强调病原体在发病中的作用

证券公司代销金融产品，不得有的行为包括（）。

Ⅰ.采取夸大宣传、虚假宣传等方式误导客户购买金融产品

Ⅱ.采取抽奖、回扣、赠送实物等方式诱导客户购买金融产品

Ⅲ.与客户分享投资收益、分担投资损失

Ⅳ.使用除证券公司客户交易结算资金专用存款账户外的其他账户

A.Ⅰ、Ⅱ、Ⅲ

B.Ⅰ、Ⅱ、Ⅳ

C.Ⅰ、Ⅲ、Ⅳ

D.Ⅰ、Ⅱ、Ⅲ、Ⅳ

（）曾在《赠缅甸友人》一诗中，用“我住江之头，君住江之尾，彼此情无限，共饮一江水”的诗句来形容中缅两国人民的绵绵情谊。

A.叶剑英

B.陈毅

C.周恩来