答案翻译的是Energy is an essential material basis for human survival and development.
我翻译的是Energy is an essential material basis that human rely on to survive and develop.
He's___ as a "bellyacher"—he's always complaining about something.A. who is known B. whom is knownC. what is known D. which is known.请问这道题为什么不能选择A,答案解析是“is 后的连接词既连接引导表从,又...
After several years of cultivation and harvest, the site would be restored at a cost much lower than the price of excavation and reburial, the standard practice for remediation of contaminated soils画线句子是什么结构?