It was not until the eleventh century that___
A. the detective found out the truth
B. did the detective find out the truth
C. had the detective find out the truth
D. had the detective found out the truth
查看答案
___, he failed to pass the test.
A. Hard although he tried.
B. He tried hard, though
C. Hard as he tried.
D. Though hard as he tried
____,the fire men were unable to quench the fire.
A. Try they would.
B. As they tried
C. What they tried.
D. Try as they would
Angiosperms inhabit relatively diverse environments and may be found___higher plants can survive
A. there.
B. where.
C. somewhere.
D. then
对于绝大多数液体，随着温度的升高，其热导率（）。
A. 不变
B. 升高
C. 降低
D. 不确定
微信支付 
支付宝支付