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【单选题】
5月31日是世界无烟日,今年无烟日的主题是戒烟.香烟的成分很复杂,经燃烧产生的烟气中含有许多强致癌物质和有害物质,其中对人体危害最大的是尼古丁[化学式为C 10 H 14 N 2 ]、焦油、一氧化碳等.下列说法错误的是(  )
A.
吸烟严重危害人的身心健康
B.
尼古丁由碳、氢和氮元素组成
C.
C 10 H 14 N 2 中碳、氢、氮三种元素的质量比为10:14:2
D.
CO能与血液里的血红蛋白结合,故而有剧毒
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【单选题】________did we go swimming in the Changjiang River.
A.
Only
B.
Once
C.
Seldom
D.
When
【判断题】ABS防抱死制动系统,由于防止车轮抱死,所以制动距离比普通制动要长。
A.
正确
B.
错误
【单选题】---May I _________ your CD? ---Yes. How long will you _________ it?
A.
borrow, keep
B.
borrow, borrow
C.
lend, keep
D.
lend, lend
【单选题】欲调查某市居民高血压患病情况,应采用哪种调查设计方法
A.
所有医院病例报告
B.
全市住院或门诊病人普查
C.
全市住院或门诊病人抽样调查
D.
现况调查
【单选题】You've booked a double room.
A.
单人房
B.
(一张大床的)双人房
C.
(两张小床的)双人房
【单选题】听力原文:I vote against visiting the mountains and riding horses. I was thrown from a horse last year. I vote that we go to the seashore. We could go swimming in the sea or take long walks along the beach...
A.
to stop smoking
B.
to fall into sleep
C.
to leave a company
D.
to mail a parcel
E.
to go shopping
F.
to go to the beach
G.
to resign from the office
H.
to find a motel
【单选题】欲调查某市居民高血压患病情况应采用哪种调查设计方法
A.
所有医院病例报告
B.
生态学研究
C.
全市住院或门诊病人普查
D.
全市住院或门诊病人抽样调查
E.
现况调查
【单选题】听力原文:Woman: I vote against visiting the mountains and riding horses. I was thrown from a horse last year. I vote that we go to the seashore. We could go swimming in the sea or take long walks along th...
A.
to stop smoking
B.
to fall into sleep
C.
to leave a company
D.
to mail a parcel
E.
to go shopping
F.
to go to the beach
G.
to resign from the office
H.
to find a motel
【单选题】We go swimming once ________ week.
A.
an
B.
a
C.
/
D.
the
【简答题】传统上,营销人员会将广告推向消费者,但广告原本的传播模式已逐渐被所谓的“窄播”取代。在窄播中,企业运用直接邮件或电话营销的方式,以找出对某一特定产品或服务感兴趣而且具有高度盈利能力的潜在客户。__________。企业在寄发广告之前,必须先获得客户的许可,特别是在电子邮件上,客户已经能够要求订阅或停止订阅电子邮件的广告。 填入横线部分最恰当的语句是( )。
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