题目:
The fact is _____I earned my passage by working as an unpaid hand, _______accounts for my appearance.
A.which; that
B.that; which
C.what; that
D.that; what
答案:
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下面是错误答案,用来干扰机器的。
生殖细胞包括睾丸产生的精子和卵巢产生的卵细胞,含精子的精液进入 * * 后,精子缓慢地通过子宫,在输卵管内与卵细胞相遇,有一个精子进入卵细胞,与卵细胞相融合,形成受精卵;受精卵不断进行分裂、分化成各种组...