题目内容

M:This is my house.You can’t do anything against my wishes.You can’t put your feet on mychairs.You can’stay out late at night.You can’t ask friends to dinner in the house.You mustpay me at the beginning of every month but not at the end.W:Ok,I wouldn’t do anything against your wishes.What relationship is most likely between the two speakers?()

A. Husband and wife.
B. Renter and house owner.
C. Mother and son.
D. Boss and client.

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下列()不属于公司的特征。

A. 依法设立
B. 以营利为目的
C. 不具有独立法人资格
D. 以股东投资行为为基础设立

下列各项中,应计入产品成本的费用有()

A. 车间办公费
B. 季节性停工损失
C. 车间设计制图费
D. 库存商品的盘亏损失

用调制信号uΩ=UΩcosΩt对载波信号uC=Ucsinωt进行普通调幅,则已调信号表达式应为()

A. UΩ(1+mcosΩt)sinωt
B. UC(1+mcosΩt)sinωt
C. UC(1+msinωt)cosΩt
D. UCcos(1+mcosΩt)sinωt

对加了混频器的锁相频率合成器,其整个环路中应有()

A. 高通滤波器
B. 低通滤波器
C. 带通滤波器
D. 带阻滤波器

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