下列说法正确的是 A.一定条件下,增加反应物的量,必定加快反应速率 B.升高温度

题型:选择题

问题:

下列说法正确的是

A.一定条件下,增加反应物的量,必定加快反应速率

B.升高温度正反应速率增大,则逆反应速率也一定增大

C.可逆反应的特征是正反应速率总是和逆反应速率相等

D.使用催化剂一定会加快反应速率

考点:化学反应速率的定义、公式
题型:选择题

每克葡萄糖提供热量()

A.4.18kJ(lkcal)

B.8.37kJ(2kcal)

C.16.74kJ(4kcal)

D.20.92kJ(5kcal)

E.37.66kJ(9kcal)

题型:选择题

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A.Collectors Club is among the biggest clubs of its kind in the country

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题型:选择题

反交易代码一般由()位数构成.

A、2位数

B、5位数

C、4位数

D、3位数

题型:选择题

下列句子中“诸”字的含义是“之于”的是( )

A.嵩又取架上书,试以问巡。
B.校尉无罪,乃我自失道。
C.广之军吏及士卒或取封侯。
D.公伐鄢。

题型:选择题

根据《反恐怖主义法》的规定,出入境证件签发机关对恐怖活动嫌疑人员,有权决定()。

A.不准其出境

B.不予签发出境入境证件

C.宣布其出境入境证件作废

D.不准其入境

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