无致龋性的甜味剂是() A.蔗糖 B.果糖 C.半乳糖 D.乳糖 E.甜菊糖

题型:单项选择题

问题:

无致龋性的甜味剂是()

A.蔗糖

B.果糖

C.半乳糖

D.乳糖

E.甜菊糖

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题型:单项选择题

根据短文内容,判断正(T)误(F)。

     When you are in Hong Kong, you must be very careful in the streets, because the traffic drives 

on the left. It is different from that in other areas of China.

      If this is the first time you have come to Hong Kong, you must look to the right side and then the

left before you cross the street. If the traffic lights are red, the traffic must stop. People on foot can

cross the road carefully. But if the traffic lights are green, the traffic can go. People on foot mustn't cross.

      When people go to or come back from work in the morning or evening, the streets are very busy.

Traffic is the most dangerous, especially for the children.

      When you go by bus in Hong Kong, you have to be careful, too. You must always remember the

traffic moves on the left. Have a look first, or you will go the wrong way.

      In Hong Kong, there are many big buses with two floors. You can sit on the second floor. From

there you can have a good view. It's very interesting.

( )1. The traffic in Hong Kong drives on the right.                                            

( )2. In Hong Kong, you can sit on the first floor of a bus and have the view of the whole city.

( )3. If the traffic lights are red, the traffic can go.                                        

( )4. The traffic in Hong Kong isn't the same as that in other areas of China.                  

( )5. According to the passage, we know we must obey the traffic rules.                        

题型:单项选择题

CM模式是以使用()为特征的建设工程组织管理模式。

A.平行承发包模式

B.CM单位

C.施工单位

D.工程总承包模式

题型:单项选择题

下述关于确定样本量的几种说法中,正确的是()。

A.样本量与置信水平成反比

B.样本量与总体方差成反比

C.样本量与允许的估计误差成反比

D.样本量与允许的估计误差的平方成反比

题型:单项选择题

根据《船舶交通事故统计规则》的规定,下列事故中()属于船舶交通事故。

A、船舶碰撞

B、船员偷渡

C、船舶火灾

D、船舶污染事故

E、船舶搁浅

题型:单项选择题

肝脏多期CT扫描的扫描基线位于()

A.剑突水平

B.右膈面

C.左膈面

D.胸骨切迹水平

E.胸骨中段水平

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