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【单选题】
Which sentence best describes the author’s opinion about steam cars?
A.
Despite all its advantages, nobody wants to have a steam car now.
B.
Cyclone Technologies has developed a new efficient steam engine, so soon steam cars will reappear in the market.
C.
Steam cars have been an important part of transport history, and some companies are still manufacturing them now.
D.
Steam cars were once popular but now only remain in the hands of enthusiasts.
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举一反三
【单选题】人们普遍认为,只要消除了( ),社会就实现了充分就业。
A.
摩擦性失业
B.
自愿失业
C.
非自愿失业
D.
结构性失业
【多选题】以下关于边际效用的说法正确的是 ( ) ——多选
A.
边际效用不可能为负值
B.
边际效用与总效用呈同方向变动
C.
对于通常情况来讲,消费者的商品服从边际效用递减规律
D.
在边际效用大于等于零时,边际效用与总效用反方向变动
【简答题】小斌非常喜欢绘画,同时也十分喜欢跳舞,但是因为课程紧,闲余时间不多,参加了绘画培训班就不能参加舞蹈培训班,参加了舞蹈培训班就不能参加绘画培训班,对此她犹豫不决,这属于( )。 A.双趋式冲突 B.趋避冲突 C.双避式冲突 D.双重趋避冲突
【单选题】According to the 1998 Aviation Medical Assistance Act, Doctors who came to passengers' aid______.
A.
do not have to be worried even if they give the patients improper treatment
B.
will not be submitted to legal responsibility even if the patients didn't recover
C.
are assisted by advanced emergency medical kits
D.
will be greatly respected by the patient and the crew
【单选题】Medical is the act or omission in treatment of a patient by a medical professional, which deviates from the accepted medical standard of care.
A.
negligence
B.
ignorance
C.
nonperformance
D.
delinquency
【多选题】以下关于边际效用的说法正确的有
A.
边际效用不可能为负值
B.
边际效用与总效用成同方向变动
C.
对于通常情况来说,消费者消费商品服从边际效用递减规律
D.
在边际效用大于等于零时,边际效用与总效用成反向变动
E.
边际效用是指每增(减)1各单位的物品的消费所引起的总效用的增(减)量
【单选题】在工业生产过程中,常需要保持两个变量(通常指流量)成比例变化,需采用比值控制系统,比值控制系统的作用,即在于维持两个变量之间的()
A.
工艺
B.
比值关系
C.
翻译
D.
代收人
【单选题】月饼油酥外露,表面呈粗糙感的现象,称为 。
A.
摊塌
B.
拔腰
C.
跑糖
D.
露酥
【多选题】以下关于边际效用的说法正确的有( )
A.
边际效用不可能为负值
B.
边际效用与总效用呈同方向变动
C.
在边际效用大于等于零时,边际效用与总效用反方向变动
D.
边际效用是指每增加(减少)一个单位的对物品的消费所引起的总效用的增(减)量
【单选题】有以下程序 void ss(char * s,char t) { while(*s) { if(*s==t)*s=t-'a'+'A'; s++; } } main() { char str1[100]='abcddfefdbd',c='d': ss(str1,C) ; printf('%s/n',str1); } 程序运行后的输出结果是( )
A.
ABCDDEFEGDBD
B.
abcDDfefDbD
C.
abcAAfefAbA
D.
Abcddfefdbd
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