由运算放大器组成的比较器,一般有()。 A.同相输入、反相输入和差动输出三种方式 B

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问题:

由运算放大器组成的比较器,一般有()。

A.同相输入、反相输入和差动输出三种方式

B.同相输入、反相输出和差动输出三种方式

C.同相输入、反相输入和差动输入三种方式

D.同相输出、反相输出和差动输出三种方式

考点:制冷设备维修工高级制冷设备维修工高级制冷设备维修工题库
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凡是以正确的客户身份标识及相应密码进行的电话银行交易均视为()自身所为,所产生的电子信息记录为该项交易的有效凭证。

A、银行

B、第三方

C、柜台

D、客户

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Sir, you ______ be sitting in this waiting room. It is for women and children only.

A.oughtn’t to

B.can’t

C.won’t

D.needn’t

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木材的各项异性

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Traditionally, the woman has held a low position in marriage partnerships. While her husband went his way, she had to wash, stitch and sew. Today the move is to liberate the woman, which may in the end strengthen the marriage union. Perhaps the greatest obstacle to friendship in marriage is the amount a couple usually sees of each other. Friendship in its usual sense is not tested by the strain of daily, year-long cohabitation. (46) Couples need to take up separate interests (and friendship) as well as mutually shared ones, if they are not to get used to the more attractive elements of each other’s personalities.
(47) Married couples are likely to exert themselves for guests--being amusing, discussing with passion and point--and then to fall into dull exhausted silence when the guests have gone. As in all friendship, a husband and wife must try to interest each other, and to spend sufficient time sharing absorbing activities to give-them continuing common interests, (48) But at the same time they must spend enough time on separate interests with separate people to preserve and develop their separate personalities and keep their relationship fresh.
(49) For too many highly intelligent working women, home represents chore obligations, because the husband only tolerates her work and does not participate in household chores. For too many highly intelligent working men, home represents dullness and complaints--from an over-dependent wife who will not gather courage to make their own life.
In such an atmosphere, the partners grow further and further apart, both love and liking disappearing. (50) For too many couples with children, the children are allowed to command all time and attention, allowing the couple no time to develop liking and friendship, as well as love, allotting exclusive parental roles.

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某中学高一年级同学就“如何理解我国宗教信仰自由政策”举行了一次课堂讨论。下面是四位同学提出的观点,其中正确的是()。

A.国 * * 护一切宗教活动

B.宗教信仰自由是对信教者而言的

C.宗教信仰自由包括不信仰宗教的自由

D.宗教信仰自由意味着可以到宗教场所宣传无神论

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