为了提醒司机，防止交通事故，经常可以看到在汽车的后窗上贴有“为了安全，请保持车距

发布时间：2017-06-23 20:52 │ 来源：www.tikuol.com

题型：多选题

问题：

为了提醒司机，防止交通事故，经常可以看到在汽车的后窗上贴有“为了安全，请保持车距！”这样的标语，主要是为了防止在下列哪种情况中可能造成交通事故（　　）

A．车速太快

B．车速太慢

C．紧急刹车

D．突然起动

考点：惯性现象

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完形填空。
Even though it was only October,my students were already whispering about Christmas plans. With each passing day everyone became more__1__ waiting for the final school bell. Upon its__3__ everyone would run for their coats and go home,everyone except David. David was a small boy in ragged clothes. I had often__3__ what kind of home life David had,and what kind of mother could send her son to school dressed so__4__for the cold winter months without a coat,boots,or gloves. But something made David__5__.I can still remember he was always__6__a smile and willing to help. He always__7__ after school to straighten chairs and mop the floor. We never talked much.He__8__ just simply smile and ask what else he could do,then thank me for letting him stay and slowly__9__ home. Weeks passed and the__10__ over the coming Christmas grew into restlessness until the last day of __11__ before the holiday break. I smiled in__12__ as the last of them hurried out of the door. Turning around I saw David__13__ standing by my desk. "I have something for you,"he said and__14__from behind his back a small box.__15__ it to me,he said anxiously,"Open it." I took the box from him,thanked him and slowly unwrapped it. I lifted the lid and to my__16__ I saw nothing. I looked at David's smiling face and back into the box and said,"The box is nice,David,but it's__17__." "Oh,no. It isn't." said David." It's full of love. My mum told me before she died that love was something you couldn't see or touch unless you know it's there." Tears filled my eyes___18__ I looked at the proud dirty face that I had rarely given__19__ to. After that Christmas,David and I became good friends and I never forgot the meaning__20__the little empty box set on my desk..
( )1.A.anxious ( )2.A.warning ( )3.A.scolded ( )4.A.modestly ( )5.A.popular ( )6.A.expressing ( )7.A.practised ( )8.A.would ( )9.A.aim at ( )10.A.argument ( )11.A.school ( )12.A.relief ( )13.A.weakly ( )14.A.searched ( )15.A.Holding ( )16.A.delight ( )17.A.cheap ( )18.A.as ( )19.A.advice ( )20.A.from	B．courageous B．ringing B．wondered B．naturally B．upset B．delivering B．wandered B．should B．turn to B．excitement B．year B．return B．sadly B．found B．Handing B．expectation B．empty B．until B．support B．behind	C．serious C．calling C．realized C．inaccurately C．special C．wearing C．studied C．might C．put off C．movement C．education C．vain C．quietly C．raised C．Sending C．appreciation C．useless C．because C．attention C．over	D．cautious D．yelling D．learned D．inappropriately D．funny D．sharing D．stayed D．could D．head for D．judgment D．program D．control D．helplessly D．pulled D．Leaving D．surprise D．improper D．though D．command D．towards

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患者男，27岁，因“饮酒后腹痛6h，进行性加重”来诊。既往有胆石症和十二指肠溃疡病史。腹部超声：肝未见异常；胆囊约11.5cm×4.0cm，胆囊壁厚2.5mm，胆囊内多个大小不等的强回声团，直径0.5~2.0cm，伴有声影；肝内胆管不扩张，胆总管上段直径约7mm，下段显示不清楚；上腹部及右肝包膜表面出现大片混响伪像（多次反射）；膀胱直肠凹见少量积液征象；胰腺显示不清楚。

对此病例，推荐的最有效的检查方法包括（）.

A.胸腹联合透视

B.超声心动图

C.CT

D.MRI

E.数字减影血管造影（DSA.

F.放射性核素胆囊显影

G.胃镜

H.腹腔镜

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苏州古称______，是中国首批公布的二十四个历史文化名城之一。

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以下能源属于可再生能源的是[ ]

A．风能

B．石油

C．煤

D．核能

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