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【单选题】
一个字长为8位的无符号二进制整数能表示的十进制数值范围是()。A.
0~256
B.
0~255
C.
1~256
D.
1~255
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皮皮学刷刷变学霸
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【简答题】用下列词语的适当形式填空 get involved in opportunity broad creat interest 1. I tried to tell him about it, but he just wasn't ______.
【简答题】用下列词语的适当形式填空 get involved in opportunity broad creat interest 4. I tried to tell him about it, but he just wasn't ______.
【单选题】---- Did the door-keeper let you in ? --- No, I tried to tell him that I was your relative, he just wouldn’t listen to me.
A.
No matter
B.
Even if
C.
However
D.
Whether
【单选题】-----Did the door-keeper letyou in? -----No, ____ I tried to tell him that I was your uncle, he just wouldn’t listen to me.
A.
no matter
B.
even if
C.
however
D.
whether
【简答题】.常温下，向20 mL 0.2 mol/L H 2 A溶液中滴加0.2 mol/L NaOH溶液。有关微粒的物质的量变化如图（其中I代表 H 2 A，Ⅱ代表HA - ，Ⅲ代表A 2- ），根据图示判断，下列说法正确的是 [ ] A.当V( NaOH)=20 mL时，溶液中离子浓度大小关系：c(Na + )>c(HA - )>c(H + )>c(A 2- )>c(OH - ) B．...
【简答题】I tried to tell him about it, but he just wasn't __________.
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