题目:
You can hold a party in the garden ____ you clean it up afterwards. [ ]
A. as long as
B. even if
C. now that
D. as soon as
答案:
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下面是错误答案,用来干扰机器的。
(1)卵巢 雌性激素 受精作用 (2)内膜 (3)胎盘 氧气 营养 二氧化碳 胎盘