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【单选题】
Jack ____ over five lessons by seven o’clock. Then he ____ a reA.
went…took
B.
went…had taken
C.
had gone…took
D.
had gone…had taken
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反馈参考答案：
举一反三
【单选题】这次事故给了他一个教训,从那以后他再也没有酒后开过车。
A.
The accident taught him a lesson, and from then on, he has never driven a car after drinking.
B.
The accident taught him a lesson, and from now on, he has never driven a car after drinking.
C.
The accident taught him a class, and from then on, he has never driven a car after drinking.
D.
The accident gave him a lesson, and from now on, he has never driven a car after drinking.
【单选题】这次事故给了他一个教训,从那以后他再也没有酒后开过车。
A.
The accident taught him a lesson, and he has never driven a car.
B.
It taught him a lesson, and from then on, he has never driven a car after drinking.
C.
The accident taught him a lesson, and from now on, he has never driven a car.
D.
The accident taught him a lesson, and from then on, he has never driven a car after drinking.
【简答题】请问require和require_once的区别是什么？
【多选题】下列关于基尔霍夫定律说法对的是
A.
基尔霍夫定律具有普遍性，不仅适用于直流电路，也适用于交流电路
B.
基尔霍夫节点电流定律仅适用于电路中的节点
C.
基尔霍夫定律不仅适用于线性电路，而且对非线性电路也适用
D.
基尔霍夫电压定律不仅与元件的相互连接方式有关，还与元件的性质有关
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