(1)已知H h L3 求L2 (2)已知 H L2 L3 求h 2 一个地区的发现A,B,C三处文物遗址,A B is partly covered by sand, C is entirely covered (没说sand), 所以说应该先挖掘A 和B。问strengthen 和 weaken ? 给了六个选项 记得我分别选了 1沙子渗入地下会对文物造成很大的破坏 2开采时扬起的沙子会对周围造成很大的破坏。
No number one best sells has been rewarded theliterary prize, but he also believe that the books rewarded literary prize will have a long-term sales. Which one of the following must be true.
B At least some of the long-term sale books are not best sells. C At least some of the best sells are not long-term sells. 最后挣扎了选了B == 元叔给分析一下吧。。。。