多分支条件语句中的控制表达式可以是哪几种数据类型？

A、数据定义语句DDL

B、数据分析语句DAL

C、数据控制语句DCL

D、数据操纵语句DML

A.SELECT

B.WHERE

C.HAVING

D.ORDERBY

Translate the following passage into Chinese. Air Travel Many people prefer to travel by air. This is because air travel has some advantages. First, airplane is the fastest means of transport today, and it takes the least time for people to travel from one place to another, thus saving them a lot of time. Besides, air travel is very comfortable. The friendly air hostesses will look after your every need. On long flights, there are films and music to entertain you. On the other hand, traveling by air has its disadvantages. Perhaps the most obvious is the element of danger involved. We often hear of the news about hijackings and crashes. To conclude, although flying involves risk, I would say that the advantages outlined above outweigh the disadvantages. If I were asked to choose between traveling by air and traveling by train, I would choose the former. （）

听力原文：W: My prents told me my unclesnduntsre plnning big fmily gthering in听力原文：W: My prents told me my unclesnduntsre plnning big fmily gthering in Pris this fll. M:re you going there W: You bet.ll my unclesndunts will tke their childrenlong, too. So I’ll meet mny cousins there. M: How nice! But why Pris W: Becuse two of myuntsre French. They metnd got mrried to my uncles in Frnce. Some of their reltivesre still living there. M: Hve you ever been to Frnce before W: No. I’ve never trveledbrod. I’m very excitedbout it. I just cn’t wit. M: My prentsre going to tke me on trip to Hwii next month by wy of Tokyo, but I’ve been there three timeslredy. Where do the womn’s fmilies gther inutumn In Pris. B．In Hwii. C．In Tokyo.

A．In Paris．

B．In Hawaii．

C．In Tokyo．