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【单选题】
(仅选择本题号对应横线处的正确答案)Read aloud paragraphs 16 and 17 until you have learned them by heart. Then try to complete the passage from memory:In _____1_____, Maxwell was right. Light is a wave. But Einstein was right, too. Light is a particle. This bizarre ____2____ baffles Physics 101 students today just as it ____3____ Einstein in 1905. How can light be both? Einstein had no idea.That didn't slow him down. Disdaining ___4____, Einstein adopted the _____5_____ leap as a basic tool. "I believe in intuition and ____6_____," he wrote in 1931. "At times I feel certain I am right while not knowing the reason."
A.
duality
B.
retrospect
C.
intuitive
D.
inspiration
E.
caution
F.
baffled
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举一反三
【单选题】根据上文,回答第 75~78 题。 某机械厂(增值税一般纳税人),1999年7月至8月发生如下经营业务: (1) 7月份外购钢材一批,价款20000元,取得增值税专用发票注明税款3400元.货款已支付,此批钢材于8月份验收入库。 (2)7月份经营部外购传真机一部,价款2100元,使用期限超过2年,取得的增值税专用发票上注明税款357元,传真机已安装使用。 (3)7月份从某国进口特种钢材一批,到岸价...
A.
2520元
B.
2894.29元
C.
2860元
D.
2903.01元
【单选题】若有定义: char *ps[]={"aa","bb","cc","dd"}; ,则以下叙述正确的是( )
A.
ps 是字符串 "aa"
B.
ps[0] 是字符 'a'
C.
*ps[0] 是字符串 "aa"
D.
*ps[0] 是字符 'a'
【判断题】水准尺应是笔直,没有弯曲变形。
A.
正确
B.
错误
【单选题】若有定义: char *ps[ ]={"aa","bb","cc","dd"}; ,则以下叙述正确的是 ______ 。
A.
ps[0] 是字符串 "aa" 的首地址
B.
*ps[0] 是字符串 "aa" 的首地址
C.
ps[0] 是字符串 "aa"
D.
*ps[0] 是字符串 "aa"
【多选题】下列关于预告信号机第说法正确的有
A.
预告主体信号机
B.
驼峰预告信号机能预告驼峰信号机的显示
C.
与主体信号机的距离不得少于800m,当显示距离不足400m时,规定其安装距离不得少于1000m。
D.
以Y+主体信号机名来命名
【单选题】为满足列车制动距离要求,预告信号机与其主体信号机间的距离不得少于_m。当预告信号机的显示距离不足_m时,规定与其安装距离不得少于_m ,确保列车司机有足够的确认信号的时间。
A.
500;400;2000;
B.
800;400;1000;
C.
800;500;1000;
D.
800;400;2000;
【单选题】根据下列文章,回答26~30题。 For the past several years, the Sunday newspaper supplement Parade has featured a column called “Ask Marilyn.” People are invited to query Marilyn vos Savant, who at age 10 had tested...
A.
Answering philosophical questions.
B.
Folding or cutting paper into different shapes.
C.
Telling the differences between certain concepts.
D.
Choosing words or graphs similar to the given ones.
【单选题】预告信号机距离其主体信号的距离规定不得少于(  )米,以满足列车制动的要求。
A.
200
B.
600
C.
800
D.
1000
【单选题】What was the fall in weekly expenditure on alcohol and tobacco overthe ten years?
A.
£1.40
B.
£3.40
C.
£2.40
D.
0
【单选题】下面 的方法中, ( ) 方法不能实现淡入或淡出的动画效果 。
A.
fadeIn()
B.
fadeOut()
C.
fadeTo()
D.
fadeOn()
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