选择题：下列疾病中由于基因改变引起的是（） A．夜盲症 B．色盲症 C．艾滋病 D．甲

题型：完形填空

It must have been about two in the morning when I returned home. I tried to my wife by ringing the door-bell, but she was very deeply asleep. So I got a ladder from the shed in the garden, put it against the wall, and began climbing towards the bedroom .I was almost there when a sarcastic voice below said, "I don't think the windows need cleaning at this time of the night.” I and nearly fell off the ladder when I saw a policeman. "I enjoy at night,”I said, but I immediately felt sorry about in the way I did.

"So do I,” answered the policeman in the same tone. "Excuse my interrupting you. I hate to interrupt a man when he's busy working, but would you coming with me to the station?"

"Well, I'd prefer to stay here,”I said. "You see, I've forgotten_______.”

"Your what? ” he called.

"My key,” I shouted.

Fortunately, the shouting woke up my wife. She opened the window just as the policeman

had started to climb towards me.

小题1:A. wake up B. hurry up C. give up

小题2:A. door B. wall C. window

小题3:A. climbed up B. looked down C. ran away

小题4:A. climbing ladders B. cleaning windows C. opening doors

小题5:A. doing B. climbing C. answering

小题6:A. enjoy B. like C. mind

小题7:A. my key B. the ladder C. the door-bell

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题型：选择题

假设有一载人宇宙飞船在距地面高度为4200km 的赤道上空绕地球做匀速圆周运动，地球半径约为6400km，地球同步卫星距地面高度为36000km，宇宙飞船和地球同步卫星绕地球同向运动，每当二者相距最近时，宇宙飞船就向同步卫星发射信号，然后再由同步卫星将信号发送到地面接收站，某时刻二者相距最远，从此刻开始，在一昼夜的时间内，接收站共接收到信号的次数为（　　）

A．4次

B．6次

C．7次

D．8次

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题型：选择题

用足量的CO还原4．0g某种铁的氧化物，生成的气体全部被足量的澄清石灰水吸收，得到沉淀7．5g，则这种铁的氧化物可能是

A．FeO

B．Fe₂O₃

C．Fe₃O₄

D．FeO与Fe₂O₃的混合物

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题型：单项选择题

在统计分析中，为了使显著性检验的两类错误同时减少，可采取的措施是

A．增加人员和设备
B．降低实验误差
C．提高显著性水平
D．增加样本含量
E．降低系统误差

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题型：单项选择题

有谁见过“唐五彩”？有谁见过“三英战赵云”？号称“中国最大民间博物馆”的河北衡水冀州冀宝斋博物馆，因“恶搞”而一炮走红。解决文化生活中的这些消极现象国家应（）

A.加强管理、正确引导

B.严格限制文化市场的发展

C.提高辨别不同性质文化的眼力

D.文化经营者应不断提高职业道德

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下列疾病中由于基因改变引起的是（） A．夜盲症 B．色盲症 C．艾滋病 D．甲

题目：

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