下列选项中C语言中不合法的字符串常量的是( )。A．")1" B．"2y1" C．

A man was on the side of the road hitchhiking（搭便车）on a very dark night in the middle of a terrible rainstorm, with no cars on the road．The storm was so strong that the man could hardly see a few feet ahead of him．Suddenly, he saw a car come towards him and stop．The man, without thinking about it, got in the car and closed the door and only then did he realize that there was nobody behind the steering wheel（方向盘）!

The car started to move very slowly．The man looked at the road and saw a curve （拐弯处）coming his way．Terrified, he started to pray, begging for his life．He had not come out of shock when, just before the car hit the curve, a hand suddenly appeared through the window and moved the wheel．The man, paralyzed with fear, watched how the hand appeared every time the car was drawing near a curve．Finally, although terrified, the man managed to open the door and jump out of the spooky car．Without looking back, the man ran through the storm all the way to the nearest town．In a state of complete horror, the man walked into a nearby bar and asked for two glasses of Scotch whisky．

Then, still shaking with fright, he started telling everybody in the bar about the horrible experience he just went through in the spooky car．Everyone in the bar listened in silence and became frightened, with hair standing on end, when they realized the man was telling the truth because he was crying and he was certainly not drunk!

About half an hour later, two other young men walked into the same bar and one said to the other, “Hey, there’s a stupid man who jumped into the car while we were pushing it!”

小题1:When the car was first drawing near a curve, the man ________．

A．felt very curious

B．was extremely frightened

C．cried for help

D．remained as calm as possible小题2:According to the passage, what made the man’s experience believable?

A．His reasonable behavior．

B．His vivid description．

C．His plain appearance．

D．His honest attitude．小题3:We can infer from the passage that ________．

A．it is unsafe for people to take a free ride

B．the man was telling a lie to his listeners

C．the car probably broke down on the way

D．the two young men were familiar with the man

禽体所需的热能首先是靠（）的分解。

A、淀粉

B、蛋白质

C、糖

D、碳水化合物

北京某中韩合资高科技企业从韩国进口一批产品，经天津口岸入境。该企业在货物运抵天津口岸之前已向北京海关录入“进口报关单”的电子数据，北京海关接受了申报并审核了报关单信息。审结后，北京海关将“进口转关货物申报单”电子数据传输至天津海关。10天后，该货物运到天津海关监管现场，因电子数据超过了申报期限，该企业重新在天津海关办理了转关手续，并经陆路运至北京海关并办理了有关海关手续。货物进口后，该企业凭有关单证办理了付汇核销手续。不久之后部分产品因质量问题退运出口。
根据上述案例，回答下列问题。

本案例中，该企业重新在天津海关办理了转关手续，并经陆路运至北京海关并办理了有关海关手续，以下转关方式中正确的是( )。

A．直转方式

B．提前报关方式

C．直通方式

D．中转方式

产后出血常见的临床表现

A．产后1小时压子宫底有大量血液及血块涌出

B．子宫轮廓不清，摸不到宫底，阵发性 * * 出血

C． * * 持续出血，色暗红，血液凝固时间大于6分钟

D．手术产后 * * 持续出血，色鲜红

YJ17卷烟机磨刀砂轮安装于刀盘上部，主要起（）作用。