【名词&注释】
花岗岩(granite)、孢子囊(sporangium)、八达岭地区
[单选题]真蕨的孢子囊群着生在营养叶的背面或背面边缘。( )
A. 正确
B. 错误
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举一反三：
[单选题]八达岭地区花岗岩从形成到出露所经历的地质过程依次是
A. 固结成岩—风化剥蚀—侵蚀搬运—地壳抬升
B. 地壳抬升—侵蚀搬运—岩浆侵入—风化剥蚀
C. 岩浆侵入—地壳抬升—风化剥蚀—侵蚀搬运
D. 侵蚀搬运—岩浆侵入—地壳抬升—固结成岩
[单选题]The writer decided to try the model he had chosen because he
A. knew very little about it.
B. didn’t trust the shop assistant.
C. wanted to make sure the one he chose would be the best.
D. had a special interest in taking pictures of his fellow shoppers.
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