在草履虫的下列结构中，能完成运动功能的是：[]A．纤毛B．表膜C．伸缩泡D．食物泡-七年级生物

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• 如图为草履虫的形态结构示意图，据图回答下列问题：（1）草履虫对氧气的摄入和二氧化碳的排出是通过[]_______来完成的，它相当于细胞结构中的_________，起保护细胞内部和_____-七年级生物
• The physics teacher said light _______ faster than sound. [ ]A. go B. travels C. went D. travelled -
• 以下为多细胞生物的是[]A．变形虫B．衣藻C．草履虫D．洋葱-八年级生物
• —There are too many "problem children" in our school. Many teachers are anxious about it.I
• 下列除哪项外其他都是单细胞生物[]A．衣藻B．草履虫C．变形虫D．玉米-七年级生物
• 生物种类多种多样，不仅有多细胞的，也有单细胞的，下列只有一个细胞的生物是[]A．松树B．马C．小麦D．草履虫-八年级生物
• 下列不属于单细胞生物的是[]A．小球藻B．水绵C．草履虫D．变形虫-七年级生物
• Could you please tell me ______ get to No.2 Middle School? [ ]A．what can I B．how can I C．how I can D
• Do all the students know _____ ? [ ]A. why they are studying forB. what are they studying C. what th
• — I seem to be lost. Could you tell me ______? — Sure. You can take the No.3 bus to get there. [ ]A.
• —I don't know _____ the piano.— Don't worry. I can teach you. [ ]A. how to play B. when to
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• 下列动物属于单细胞动物的是[]A．草履虫B．珊瑚虫C．小麦线虫D．涡虫-八年级生物
• —What did the headmaster come here for? —He wanted to know ______. [ ]A. what the girl's name w
• 下列不属于单细胞生物的是[]A．草履虫B．蝗虫C．酵母菌D．衣藻-七年级生物
• You must remember ______. [ ]A. what your teacher said B. what did your teacher say C. your teacher
• Would you tell me ______?[ ]A. where is the shop B. where the shop is C. where are the shop D. where
• There are so many kinds of Mp3 in the shop. We can't decide . [ ]A. what to buy B. to buy what
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• Would you show me ______ an e-mail, please? [ ]A. how to make B. how to send C. which to make D. whe
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• 下列单细胞生物中，能净化污水的是[]A．酵母菌B．草履虫C．疟原虫D．变形虫-七年级生物
• —We can use QQ to talk with each other on the Internet.—Really? Will you show me ________ it? [ ]A.
• 1665年，英国科学家罗伯特·虎克将软木塞的薄片放在自制的光学显微镜观察发现了细胞。到19世纪30年代，德国科学家施莱登和施旺分别对植物和动物进行深入的研究，提出动物和植-七年级生物
• I hope Tina ______ to my birthday party on time next Wednesday. [ ]A. to come B. come C. came D. wil
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• — Would you please tell me ______? — At 10:00 this evening. [ ]A. when will the train leave B. when
• There is not many differences between the two. I really don't know ________.[ ]A. what should I
• 下列哪一单细胞生物细胞里含有叶绿体，能进行光合作用？[]A．酵母菌B．草履虫C．衣藻D．变形虫-七年级生物
• Kangkang is asking Mr. Lee_____about Shenzhou VI. [ ]A. that he will tell him something B. when will
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• 选择填空。 Can you tell me ______ country is north of the U.S., Lily? [ ]A. where B. when C. what D. how
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• —We will hold a wonderful picnic for you when Chidren’s Day 。A. comes B.will come C. is coming -九年级英
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