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【单选题】
听力原文:M:Hi, it's been a long time since we saw each other last time. What have you been up to? W:It's great to see you again. I've been away on business. Well, (23)first I flew to New York for two meetings, After that, (23)I flew to Atlanta, where I had to make a presentation at a company conference. M:It sounds like you've been busy. W:Yes, I've been very busy. It's good to be home again. What have you been doing lately? M:Oh, nothing much. I've been working in the garden these past few days. Alice has been away for the past two weeks visiting her relatives in Chicago. W:I didn't know she has family in Chicago. M:Yes, that's right. We met at university in California. She was born in Chicago and lived there until she went to college. W:How long have you lived here in Colorado? M:We've lived here for over 10 years. We moved here in 1998 because I had a new job as a sales representative. W:Have you lived in the same house since you arrived? M:No, first we lived in an apartment in downtown Denver. We moved here four years ago.(24)We've lived on the street for four years and they've been the happiest years of our lives. W:Yes, (25)my husband and I love this neighborhood. M:And how long have you lived in your house? W:(25)We've only lived here for two years. M:That's strange!(25) W:No, we moved here in 2006. (20)
A.
New York.
B.
Chicago.
C.
Denver.
D.
Colorado.
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【单选题】人口、领土、政权和主权是构成主权国家的基本要素,其中最主要的是()。
A.
人口
B.
领土
C.
主权
D.
政权
【单选题】人口、领土、政权和主权是构成主权国家的基本要素,其中最重要的是()
A.
人口
B.
领土
C.
主权
D.
政权
【简答题】图示为一已知的曲柄摇杆机构,现要求用一连杆将摇杆 CD 和滑块 F 连接起来,使摇杆的三个已知位置 C 1 D 、 C 2 D 、 C 3 D 和滑块的三个位置 F 1 、 F 2 、 F 3 相对应(图示尺寸系按比例绘出)。试确定此连杆的长度及其与摇杆 CD 铰接点的位置,并写出作图步骤。
【单选题】碘量法测定黄铜中的铜含量,为除去Fe3+干扰,可加入( )。
A.
KI
B.
NaF
C.
HNO3
D.
H2O2
【单选题】当加在三极管发射结的电压小于PN结的导通电压时,三极管处于何种状态?
A.
截止状态
B.
放大状态
C.
饱和导通状态
D.
需根据实际电路判断
【判断题】当加在三极管发射结的电压小于 PN 结的导通电压,基极电流近似为为零,集电极电流和发射极电流都近似为零,三极管这时失去了电流放大作用,集电极和发射极之间相当于开关的断开状态。
A.
正确
B.
错误
【判断题】构成主权国家的基本要素中最重要的是政权。
A.
正确
B.
错误
【简答题】如图所示为一已知的曲柄摇杆机构, 现要求用一连杆将摇杆 CD 和滑块连接起来,使摇杆的三个已知位置 C 1 D, C 2 D, C 3 D 和滑块的三个位置 F 1 , F 2 , F 3 相对应(图示尺寸系按比例尺绘出) , 试以作图法确定此连杆的长度及其与摇杆 CD 铰接点的位置。(作图求解时,应保留全部作图线)
【单选题】人口、领土、政权和主权是构成主权国家的基本要素,其中最重要的是()
A.
主权
B.
领土
C.
人口
D.
政权
【判断题】主权国家的基本要素是政权。
A.
正确
B.
错误
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