设NA表示阿伏加德罗常数的值,下列说法正确的是 A.常温常压下,5.6L CH4

题型:选择题

问题:

设NA表示阿伏加德罗常数的值,下列说法正确的是

A.常温常压下,5.6L CH4含C—H键数目为NA

B.常温常压下,100g17%H2O2水溶液含氧原子总数为NA

C.标准状况下,5.6L O2与适量Na加热反应,转移电子数一定为NA

D.常温常压下,14g乙烯与丙烯的混合气体,含碳原子总数为NA

考点:物质的量
题型:选择题

Jean Francis Grander was perhaps the most daring man who ever lived and perhaps the craziest.His greatest desire was to entertain and amaze people.He measured his success by the number of people who fainted dead away after witnessing his death-defying(极其惊险的)feats.

Grander,a blond Frenchman,toured North America in 1850,billing himself as “Blondin”.Blondin’s gift was excellent balance.This talent.coupled with a great desire to surprise and shock his audiences,made Blondin an incomparable performer.

His most famous feat was walking across Niagara Falls on a tightrope.Blondin’s “stage” consisted of a rope tied 1,100 feet across the falls.The rope hung some 160 feet above the rocks and boiling water below the falls.

Simply walking across the falls was not exciting enough for Blondin;he later had to ride across on a bicycle.Then,in another performance,he calmly walked across blindfolded(被蒙住的眼睛).At still another time,he carried his terrified manager on his back and walked over the falls before thousands of breathless audience.

But Blondin was undoubtedly his own worst critic.He was never satisfied with hfs act and always tried to attract his audience with his balancing feat.One of his most daring walks was made in the darkness of night.Blondin became so famous on his tour through North America that his last performance was attended by an admiring Prince of Wales.

60.Why does the author think that Grander may be the craziest man in the world?

A.Because he enjoyed entertaining people by terrifying them.

B.Because many people died after seeing his feats.

C.Because his greatest desire was to entertain people.

D.Because he was an incomparable performer.

61.What does the underlined word “feat” in this passage mean?

A.excellent performance                                 B.tour

C.famous event                                              D.victory

6 2.What can we infer from the first sentence in the last paragraph?

A.Blondin was very content with his own performance.

B.Blondin was not very very good at criticism.

C.Blondin never thought that his performance was satisfy.

D.Blondin didn’t like criticism.

63.The author’S attitude towards“Blondin”is       .

A.critical                   B.admiring                 C.negative                  D.depressed

64.Which of the following can NOT be drawn from the passage?

A.Blondin’s success had something to do with his character.

B.In order to be Successful,one should be a critic of himself.

C.Blondin conquered his audience simply by his talent.

D.People can get pleasure from a terrifying experience.

题型:选择题

[中国人民银行] 外资银行营业性机构不包括( )。

A.外商独资银行
B.中外合资银行
C.外国银行分行
D.外国银行代表处

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肾移植麻醉,选用局麻药应避免()

A.酰胺类局麻药

B.酯类局麻药

C.加用肾上腺素

D.短效局麻药

E.长效局麻药

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影响胰岛β细胞释放胰岛素最重要的因素是()

A.血脂水平增加

B.肠道蠕动增强

C.血糖水平增加

D.下丘脑受刺激

E.肾上腺素的释放

题型:选择题

需要修改当前表的表结构时,应使用的命令是 【1】

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