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【单选题】
下面选项中关于 Java 中 this 关键字的说法正确的是( )
A.
this 关键字是在对象内部指代自身的引用
B.
this 关键字可以在类中的任何位置使用
C.
this 关键字和类关联，而不是和特定的对象关联
D.
同一个类的不同对象共用一个 this
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【单选题】―――I feel sick，doctor．――＿＿＿＿． ―――I'm not sure，but I have got a bad headache．
A.
How long have you been sick?
B.
I'm sorry to hear that．
C.
How are you feeling now?
D.
Do you have a fever?
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【单选题】通常情况下大部分粉末是。( )
A.
菱形
B.
圆形
C.
三角形
D.
不规则形状
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【简答题】小东家有一件久置的铜器件，其表面有大量“铜绿“．小东找来同伴一起探究它的成分，他们向一支试管中加入少量刮下的“铜绿”粉末，格下图所示实验装置来探究它的成分，回答下列问题．查阅资料知：无水CuSO 4 是白色粉末，遇水会变成蓝色；碳粉是黑色粉末，通常情况下不与酸、碱反应． （1）固定放有“铜绿“的试管时试管口应 ______ ． （2）将铜绿分解的产物依次通过无水硫酸铜、澄清石灰水时，他们看到无水硫...
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【单选题】Hello! You ____ 68442936. I'm sorry I'm unable to answer your call right now. [     ]
A.
reached
B.
have reached
C.
are reaching
D.
had reached
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【判断题】最大的杠杆就是最优的杠杆率
A.
正确
B.
错误
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【单选题】听力原文：M: I'm glad I called to check on the time for picking Susan up, otherwise I'd have to wait for a longer time. W: Was the plane delayed again? Q: What does the woman imply? (17)
A.
Susan is late for work again.
B.
Susan has been delayed because of busy air traffic.
C.
Susan is traveling on a plane.
D.
Susan needs to be picked up.
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【单选题】听力原文：M: I'm not feeling well. I'm seasick. I'm faint now. W: Take this medicine and have a short sleep. You'll soon feel better. Where did the conversation take place?
A.
On a ship.
B.
On a car.
C.
On a bus.
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【多选题】在某些情况下,钢丝绳的弹性会显著降低,若继续使用则是不安全的,弹性降低通常伴随()现象。
A.
绳径减小
B.
钢丝绳捻距增大    1
C.
由于各部分相互压紧，钢丝之间和绳股之间缺少空隙
D.
绳股凹处出现细微的褐色粉末
E.
绳径增大
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【简答题】I should very much like to have gone to that party of theirs，but__________. A．I’m not invited B．I have not been invited C．I was not invited D．I had not been invited
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【单选题】--- I will come to attend your lecture at 10:00 tomorrow. --- I’m sorry, by then my lecture will have ended and I ______ my guests in my office.
A.
is being met
B.
will meet
C.
will be meeting
D.
will have met
查看完整题目与答案
相关题目：
【单选题】―――I feel sick，doctor．――＿＿＿＿． ―――I'm not sure，but I have got a bad headache．
A.
How long have you been sick?
B.
I'm sorry to hear that．
C.
How are you feeling now?
D.
Do you have a fever?
查看完整题目与答案
【单选题】通常情况下大部分粉末是。( )
A.
菱形
B.
圆形
C.
三角形
D.
不规则形状
查看完整题目与答案
【简答题】小东家有一件久置的铜器件，其表面有大量“铜绿“．小东找来同伴一起探究它的成分，他们向一支试管中加入少量刮下的“铜绿”粉末，格下图所示实验装置来探究它的成分，回答下列问题．查阅资料知：无水CuSO 4 是白色粉末，遇水会变成蓝色；碳粉是黑色粉末，通常情况下不与酸、碱反应． （1）固定放有“铜绿“的试管时试管口应 ______ ． （2）将铜绿分解的产物依次通过无水硫酸铜、澄清石灰水时，他们看到无水硫...
查看完整题目与答案
【单选题】Hello! You ____ 68442936. I'm sorry I'm unable to answer your call right now. [     ]
A.
reached
B.
have reached
C.
are reaching
D.
had reached
查看完整题目与答案
【判断题】最大的杠杆就是最优的杠杆率
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：M: I'm glad I called to check on the time for picking Susan up, otherwise I'd have to wait for a longer time. W: Was the plane delayed again? Q: What does the woman imply? (17)
A.
Susan is late for work again.
B.
Susan has been delayed because of busy air traffic.
C.
Susan is traveling on a plane.
D.
Susan needs to be picked up.
查看完整题目与答案
【单选题】听力原文：M: I'm not feeling well. I'm seasick. I'm faint now. W: Take this medicine and have a short sleep. You'll soon feel better. Where did the conversation take place?
A.
On a ship.
B.
On a car.
C.
On a bus.
查看完整题目与答案
【多选题】在某些情况下,钢丝绳的弹性会显著降低,若继续使用则是不安全的,弹性降低通常伴随()现象。
A.
绳径减小
B.
钢丝绳捻距增大    1
C.
由于各部分相互压紧，钢丝之间和绳股之间缺少空隙
D.
绳股凹处出现细微的褐色粉末
E.
绳径增大
查看完整题目与答案
【简答题】I should very much like to have gone to that party of theirs，but__________. A．I’m not invited B．I have not been invited C．I was not invited D．I had not been invited
查看完整题目与答案
【单选题】--- I will come to attend your lecture at 10:00 tomorrow. --- I’m sorry, by then my lecture will have ended and I ______ my guests in my office.
A.
is being met
B.
will meet
C.
will be meeting
D.
will have met
查看完整题目与答案