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【单选题】
外胚乳的细胞内染色体数目为()。A.
N
B.
2N
C.
3N
D.
以上均不对
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举一反三
【单选题】选择正确的译文并学习划线部分的表达法。 承德避暑山庄 位于河北省承德市北部,是清代皇帝 避暑 和 处理政务 的场所。
A.
Located in the north of Chengde, Hebei Province, the Chengde Mountain Resort was where Qing emperors took shelter from the summer heat and dealt with court affairs .
B.
Located in Hebei Province, the north of Chengde, the Chengde Mountain Resort was where Qing emperors took shelter from the summer heat and dealt with court affairs.