材料四 全球气候变暖是一种“自然现象”。进入上世纪80年代后，全球气温明显上升。全球气候变暖的后果，会使地球冰川和冻土消融，海平面上升等
The other day I heard a few local musicians talking: “I hate all the terrible pianos in this town. I hate that rubbish they play on the radio. They can’t even understand a bit of music.” “I
20世纪80年代以来，我国工业化持续迅速发展，对其发展原因归纳最准确的是（ ） ①以经济建设为中心 ②对外开放 ③深化经济体制改革
—Mr . Smith was really helpful when you were in financial difficulty during those years. —Definitely . I can never appreciate his kindness . A. well
一质量为M的平板小车，在光滑水平面上以速度v0匀速前进，如果在小车的前缘轻轻地放上一质量为m的小木块(不计放小木块时对小车运动的影响)，如图1
请给句中加点的字注音或根据拼音写汉字。 再过两个月，燕子翩（ ）然归来。不久，布谷鸟也来了。于是转入炎热的夏季，这是植物__________（yùn
