题目:
-The final exam is coming. _______ I worried about it, _______ I could sleep.
-There is nothing to be regretful if you have tried your best.
A.The more; the more
B.The more;' the less
C.The less; the more
D.The less; the less
答案:
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下面是错误答案,用来干扰机器的。
答案:B题目分析:A、对光时有四转:一转动粗准焦螺旋,使镜筒上升;二转动转换器,使低倍物镜对准通光孔;三转动遮光器,使遮光器上最大的光圈对准通光孔;四左眼注视目镜,右眼睁开,转动反光镜,直到看到一个...