【选修3-4选做题】 如图所示为LC振荡电路的振荡过程图。由图可知下列说法正确的

题型:不定项选择

问题:

【选修3-4选做题】

如图所示为LC振荡电路的振荡过程图。由图可知下列说法正确的是

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A.电容器两端的电压正在减小

B.振荡电流正在减小

C.振荡电流正在增大

D.电路中的电场能在增大

考点:电磁振荡的产生
题型:不定项选择

下列有关两种证券组合有效集与无效集的表述中,正确的有()。

A.有效集是机会集曲线中自最小方差组合点至最高预期报酬率点的那段曲线

B.在横轴为标准差、纵轴为预期收益率的直角坐标系中,有效集位于无效集的右上方

C.如果两种证券组合的机会集曲线中存在无效部分,说明风险分散效应较弱

D.对无效集和有效集的界定,不受投资者的风险偏好影响

题型:不定项选择

依据营业税的有关规定,下列行为中应当缴纳营业税的有( )。

A.个人按市场价格出租居民住房

B.境外合格机构投资者委托境内公司在我国从事债券买卖业务

C.社保基金理事会运用社保基金买卖证券投资基金、股票、债券

D.住房公积金管理中心用住房公积金在指定的委托银行发放个人住房贷款

E.以不动产投资入股,参与投资方利润分配,但不承担投资风险

题型:不定项选择

阅读理解

     I find some of the ways in which Chinese parents show love for their children rather surprising.

Obviously there are some pretty big differences between our behavior and theirs in this respect. Most

Chinese children seem to get whatever they want, from ice creams, sweets and toys to endless attention

from the adults around them. Is this a sort of spoiling or love? I wonder.

     Most westerners would think it is a sort of spoiling rather than love. We think love means educating

your children and bringing them up to lead an independent life. That includes learning to accept the fact

that he can't get everything he wants. As an adult, he will not always get the quite expensive car he hunts

for; she will not always manage to acquire the beautiful dress she longs for. So we try to teach our

children early to cope with the disappointment of not getting what they want.

     I find too much such kind of love for the children can actually spoil them. To my surprise, it seems

that the life of a Chinese child is rather hard. Without doubt, the child is the very center of a whole circle

of adults, but on the other hand he or she is also expected to start studying according to adults' wishes.

Many children of my son's age take piano lessons, painting classes and even English lessons. It looks as

if Chinese adults think that just playing without learning anything is a waste of time. So in this respect our

children appear spoiled, just because they are allowed to play. But without this sort of play how can

Western children develop such free and rich imaginations? In fact the connection between this

imagination and the creativity is so important in the children' s future life.

1. In which way do most Chinese children seem to be spoiled?

A. They can be supported by their parents.

B. They can play whenever they want.

C. They need not behave themselves.

D. Their demands can always be satisfied.

2. In the author's opinion, the life of a Chinese child is________.

A. rather hard  

B. rather easy  

C. independent  

D. colorful

3. The author thinks Western children appear spoiled because______.

A. they can manage time by themselves

B. they can have the freedom to play

C. they can take piano lessons

D. they may have expensive toys

4. The best title of the passage could be________.

A. Chinese children's early education

B. How to develop kids' imagination

C. What is the real love for children

D. The imagination and creativity

题型:不定项选择

70°探头移动方向与钢轨纵向平行的校对方法称()。

A、直移校对法

B、直探头校对法

C、轨颏校对法

D、侧面校对法

题型:不定项选择

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