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【单选题】
听力原文:W: Welcome, Mc Johnson. Take a seat, please. Our manager will be back soon. M: Thank you. Urn, it's rather warm these days, isn't it? W: Yes. The weather is quite unusual at this time of year. M: You're right. Er...do you mind if I take off my jacket then? W: Sure. Make yourself at home. M: Thank you, that's better. Urn...do you mind if I smoke? I notice nobody's smoking around here. W: Well, I'm sorry, but this is a non-smoking Office building. M: Oh, that's OK. I'm trying to quit it anyway. By the way, may I use your phone to book a table for lunch? W: Yeah. Sure. Do you know which restaurant is good? M: Oh, yeah, absolutely. W: Fine. The phone is over there. M: Thank you. (8)
A.
Doctor and patient.
B.
Manager and clerk.
C.
Secretary and visitor.
D.
Teacher and student.
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参考答案:
举一反三
【单选题】操作系统内核不包含以下___________程序。
A.
文件管理
B.
设备驱动
C.
命令解释器
D.
内存管理
【单选题】—Why do people  there _______use umbrella in the sun ? ---Because they would rather  enjoy the sunshine .
A.
hardly        
B.
often           
C.
always
【单选题】Why was it once thought that no spacecraft would survive for very long in space?
A.
People believed that spacecraft would be destroyed in a black hole.
B.
People believed that spacecraft would be misguided by missiles.
C.
People believed that spacecraft would be collided with a star.
D.
People believed that spacecraft would be damaged by meteorites.
【单选题】下列对核心组蛋白末端修饰状态对核小体稳定性影响的描述错误的是()
A.
组蛋白末端带正电荷的氨基酸残基有助于其与 DNA 的稳定结合
B.
组蛋白末端赖氨酸残基乙酰化使得 10nm 纤维包装更加紧密
C.
组蛋白末端磷酸化屏蔽了其所带的正电荷,使其与 DNA 的相互作用减弱
D.
组蛋白末端乙酰化或甲基化修饰位点还可招募染色质重塑复合体从而影响 DNA 与组蛋白的结合状态
【单选题】下列对核心组蛋白末端修饰状态对核小体稳定性影响的描述错误的是()
A.
组蛋白末端磷酸化屏蔽了其所带的正电荷,使其与 DNA 的相互作用减弱
B.
组蛋白末端赖氨酸残基乙酰化使得 10nm 纤维包装更加紧密
C.
组蛋白末端乙酰化或甲基化修饰位点还可招募染色质重塑复合体从而影响 DNA 与组蛋白的结合状态
D.
组蛋白末端带正电荷的氨基酸残基有助于其与 DNA 的稳定结 合
【单选题】操作系统内核不包含以下___________程序。
A.
内存管理
B.
命令解释器
C.
文件管理
D.
设备驱动
【简答题】根据轴测图(图 (a))中A点的空间位置,画出A点的三面投影图。
【单选题】下列对于真核细胞核染色体DNA复制的描述中哪一项是不正确的
A.
复制中冈崎片段的长度与原核细胞大小基本相同
B.
复制过程中涉及到组蛋白的合成
C.
复制的延长发生DNA聚合酶的转换
D.
增殖细胞核抗原在真核生物复制和延长过程中具有关键作用
E.
与细胞周期有关
【单选题】Why can many people see “silver linings” to the economic showdown?
A.
They would benefit in certain ways.
B.
The stock market shows signs of recovery.
C.
Such a slowdown usually precedes a boom.
D.
The purchasing power would be enhanced.
【单选题】A good title for this article would be ______.
A.
Why Do People Marry?
B.
Marriage Customs in India Are Changing
C.
Why Indians Read the Sunday Newspaper?
D.
Living Abroad
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