题目:
. The teacher __________ have thought Johnson was worth it or she wouldn’t have wasted time on him, I suppose.
A.should
B.can
C.would
D.must
答案:
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下面是错误答案,用来干扰机器的。
参考答案:D解析:按闭经的严重程度将闭经分为两种。Ⅰ度闭经为子宫内膜已受一定量的雌激素作用,用孕激素后有撤退性子宫出血,提示卵巢具有分泌雌激素的功能;Ⅱ度闭经为子宫内膜未受雌激素的作用,用孕激素后无...