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【简答题】
句型转换。 1. I have something important to tell you.(改为否定句) I have _____ to tell you. 2. Li Ming fell ill. (改为一般疑问句) _____ Li Ming _____ ill? 3. Let's go to the playground.(改为反意疑问句) Let's go to the playground, _____? 4. He has to stay at home, too.(改为否定句) He _____ to stay at home _____. 5. The doctor told me to stay in bed . (就画线部分提问) _____ the doctor _____ you _____.
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举一反三
【单选题】下面关于支路电流法所需列写的方程叙述正确的是( )
A.
仅需列写KCL方程
B.
需要同时列写KCL、KVL方程
C.
仅需列写KVL方程
D.
仅需列写VCR(支路电压电流关系)方程
【单选题】Which of the following is the best example of structural unemployment?
A.
Tim is looking for a job with flexible hours but has not been offered one yet.
B.
Vickie lost her job as a graphic artist at a movie studio because she did not have training in computer-generated animation.
C.
Kirby is seeking a job as an airline pilot, but the high union wages in the industry have limited the number of jobs available.
D.
Fatima lost her job at a packing plant but has not looked very intensively for a new job because she still has 2 months of unemployment insurance benefits left.
【多选题】关于支路电流法下面论述正确的是
A.
支路电流法未知量为未知的支路电流
B.
需要的方程个数等于未知的支路电流个数
C.
支路电流法列方程的时候，如果有n个结点，可以列出ｎ－１个独立的结点电流方程
D.
电路中有恒流源的时候，该支路的支路电流为已知，可以少列一个支路电流方程
【多选题】下面关于支路电流法，（ ）是正确的。
A.
以支路电流作为变量列写方程
B.
支路电压用支路电流来表示
C.
因为变量是电流，所以只需要利用KCL列结点电流方程即可
D.
需要同时利用KCL和KVL列方程
【简答题】Which plant did her son and daughter choose for her ?
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