某一个生态系统中的水受到污染，对其他生态系统也有影响．______．-生物

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• 人类及一切陆生生物的“立足点”位于[]A．整个水圈B．大气圈下层C．岩石圈上层D．生物圈-七年级生物
• 生物圈的范围是大致是[]A．海平面以下10千米和海平面以上10千米之间B．水圈和岩石圈C．海平面以下100米和海平面以上100米D．大气圈和岩石圈-七年级生物
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• 地球上最大的生态系统是__________，它的范围包括______________、_____________和岩石圈的表面。-七年级生物
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• —Have you ever been to Wuhan? —No,.[ ]A. neither B. nor C. either D. never-八年级英语
• —Do you often exercise, Jason?—No, _______. I don’t like sports at all.[ ]A. usually B. often C. nev
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• My mother likes shopping. She goes shopping a week. [ ]A. to go; twice B. go; two times C. go; twice
• Chen Hui was chewing gum _____. [ ]A. anywayB. all the timeC. all time D. all the same -九年级英语
• Frank______watchessitcomsbecausetheyareboring. [ ]A.often B.usually C.always D.never -七年级英语
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• Cotton is growing fine, _ _ in that area. [ ]A. especial B. especially C. especialled D. especiallin
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• —Have you cleaned the house_________?—Yes, I have _________cleaned it.[ ]A. yet, yetB. already, alre
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• My host family is _____nice.[ ]A. realB. reallyC. hardD. hardly-八年级英语
• The river is __ wider than that river.[ ]A. very B. too C. toD. so-八年级英语
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• My father_____ plays sports. He only exercises once a month.[ ]A. neverB. everC. hardly never D. har
• I don't like it when the saleswomen follow me .[ ]A. afterB. aroundC. beforeD. at-八年级英语
• ln the accident, Mr Brown get injured as _as his wife. [ ]A. seriousB. seriously C. more seriouslyD.
• The new words in the book make reading it very _______ . [ ]A. easy B. hardC. hardly D. easily-九年级英语
• —Would you please help me ______, Wang Fei? This question's too hard for me.—OK. Let me try.[ ]
• _____ he will come here tomorrow.[ ]A. May beB. May isC. MaybeD. Can he -九年级英语
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