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【简答题】
用所给词的正确形式填空。 1.You can't imagine how_________(angry) he looked at me. 2. My grandfather can even read newspapers and magazines in his_________(nine) 3.Thanks for your advice. It's _________(value) of all. 4. The cartoon film __________by Jim Green is very interesting. (direct) 5. When autumn comes, ___________(leaf) turn yellow. 6. The police think the knife is one of the __________(rob). 7.Three years___________ (pass) since he joined the party. 8. Some boys were seen __________(swim) on the lake when we walked past. 9.The letter ought to ____________(type) on the computer with word processing skills. 10. She is very selfish. She always thinks more of ______ (she) than others.
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【简答题】静电场的环路定理的数学表示式为: 该式的物理意义是:单位正电荷在静电场中沿任意闭合路径绕行一周, __________ 力作功等于零。
【简答题】人体血液的pH总是维持在7.35~7.45的范围内,这是由于 (A) 人体内有大量的水分(约占体重的70%) (B) 新陈代谢的CO 2 部分溶解在血液中 (C) 新陈代谢的酸碱物质适量地溶解在血液中 (D) 血液中的 和H 2 CO 3 只允许一定的比例范围
【单选题】While ______ in the supermarket, I met an old friend of mine.
A.
being shop
B.
shop
C.
shopping
D.
shopped
【多选题】关于电动势和电压的区别和联系,下列说法正确的是()
A.
电动势物理意义是 “ 非静电力做功,其他形式能转化为电能 ” ,电压是 “ 电场力做功,电能转化为其他形式的能 ” ;
B.
电动势的定义为 E 等于 W 除以 q ,其中 W 为非静电力做的功;电压 U 也是 W 除以 q ,但 W 是电场力做的功;
C.
电动势的本质表征电源的性质,电压表征电场的性质;
D.
他们的联系,单位都是伏特,电动势等于电源未接入电路时两极间的电压或是内外电压之和。
【单选题】______ of danger on the road at night ,the girl had to go home with a friend _______ her.
A.
Being warned; accompanied
B.
Having warned; accompanying
C.
Warning; accompanying
D.
Having been warned; accompanying
【单选题】人体血液的pH总是维持在7.35~7.45。这是由于
A.
人体内含有大量水分
B.
血液中的HCO-3和H2CO3起缓冲作用
C.
血液中含有一定量的Na+
D.
血液中含有一定量的O2
E.
血液中含有一定量的红细胞
【多选题】以下关于电势说法正确的是
A.
电势定义式为:
B.
电势定义式为:
C.
电势物理意义为:把单位负试验电荷从点A移到无限远处时静电场力作的功
D.
该式子中取无穷远为电势零点
【判断题】结跏跌坐:双足交叉于左右膝上(双盘坐),如果单以右足压于左腿之上(俗称单盘)。
A.
正确
B.
错误
【单选题】The girl was quite angry ______ his boy friend for his being late.
A.
for
B.
on
C.
with
D.
at
【单选题】_____ of danger in the street at night, she had to go home with a friend _____ her.
A.
Being warned; accompanied
B.
Having warned; accompanying
C.
Warning; accompanying
D.
Having been warned; accompanying
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