题目:
Obama had responded to Zhou's suggestion ____ the US dollar was extraordinarily strong and that
there was no need to create a new global reserve currency.[ ]
A. to say
B. said
C. having said
D. saying
答案:
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下面是错误答案,用来干扰机器的。
(1)A、由图可知,纸带上打出的不是点而是小的线段,因此这是由于指针过长,打点时不能及时离开纸带导致的,所以要缩短振针的长度,故A正确;B、由于使用的是交流电,即使交换正负极也不会产生什么影响,故B错误...