下面说法正确的是（）。 A.放大器级与级之间耦合的目的是将前级放大器的信号送到下级放
题型：单项选择题
问题：
下面说法正确的是（）。
A.放大器级与级之间耦合的目的是将前级放大器的信号送到下级放大；
B.直接耦合的优点是对信号不衰减；
C.阻容耦合和变压器耦合的优点是各级工作点相互影响，变压器耦合还可达到阻抗匹配的目的；
D.以上说法都对。
题型：单项选择题
小题1:—Do you know whose book this is?
—Let me see. Oh, it’s Lisa’s. ________ name is on it.
小题2: I think the dictionary is very ________ to your study.
小题3:He wasn’t feeling well, so he had to stop ________ .
小题4:Yi Jianlian is one of the most famous basketball ________ in China.
小题5: My family usually have a get-together ________ a month.
B) 根据句意及所给的词首字母或汉语提示，补全单词。
小题6: —What’s your uncle’s j ?
—He’s a waiter in a restaurant.
小题7: We can’t breathe f________ air because of polluted environment.
小题8:. Time is knowledge and time is money. Don’t w________ it, please.
小题9:China is a great country with over 5,000 years of ________ (历史).
小题10: You must ________ (归还) the library book on time.