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【单选题】
如图所示电路中,已知 V cc=12V , R C =3kΏ ,静态管压降 U CEQ =6V ,负载电阻 R L =3kΏ ,则该电路最大不失真输出电压有效值为( )。A.
2.12V
B.
3V
C.
6V
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反馈参考答案：
举一反三
【简答题】他弟弟刚上火车，火车就开动了。
【判断题】according to para. 4, the old man had never visited the little French restaurant.
A.
正确
B.
错误
【单选题】The conversation had been (carried on) chiefly (in French), a language (which) Jerry was (perfectly) acquainted.
A.
carried on
B.
in French
C.
which
D.
perfectly
【简答题】By the last weekend, I had learned all the letters of the French ____. Asymbol Bpattern Calphabet Dsample
【单选题】The French pianist who had been praised very highly______ to be a great disappointment.
A.
turned up
B.
turned in
C.
turned down
D.
turned out
【简答题】天刚蒙蒙亮,一骨碌就翻身下了床,这是他从70年代就养成的习惯。洗漱后,他很得意地欣赏起昨天刚买的一双白网鞋。这是小时候哥们最喜欢穿的运动鞋。他今天又要去跑步了。跑步回来,一边听着“军港之夜”,一边刷牙。“中华牙膏的味道就是好。”想。该到食堂吃早餐了,品种很多,可是选来选去,还是选择了子。“这子也忒小了点,为什么不做成像读大学时的包子那样二两一个呢?那才够劲嘛!现在连包子都缩水了。”...
【单选题】What does the case of the old French polisher illustrate?
A.
More and more people have accepted that although they are old they have to learn new skills.
B.
Redundant workers have to learn new skills even though they are old.
C.
Sometimes people are too old to learn something new.
D.
People are never too old to learn something new.
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