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【单选题】
int a =1；int b=2；a+=b--；运行后a和b的值分别为A.
1，2
B.
1，1
C.
2，1
D.
3，1
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举一反三
【单选题】已知 0.10mol/L 一元弱酸溶液的 pH=3.0,则 0.10mol/L 共轭碱 NaB 溶液的 pH 是( )。
A.
11
B.
9
C.
8.5
D.
9.5
【单选题】What did Congress and the Obama administration do for slowing global warming?
A.
Collecting the evidence of climate change.
B.
Taking action to limit emissions which absorb heat.
C.
Recording the highest temperature in a year.
D.
Negotiating a new treaty for reducing the emissions.
【单选题】How many electoral votes did Obama get?
A.
More than 300 electoral votes.
B.
270 electoral votes.
C.
30 electoral votes.
D.
85% of the electorate votes.
【单选题】已知 0.10 mol·L -1 一元弱酸溶液的 pH=3.0, 则 0.10 mol·L -1 共轭碱 NaB 溶液的 pH 是
A.
11.0
B.
9.0
C.
8.5
D.
9.5
【简答题】简述单斗挖土机的分类及其特点。
【单选题】What was the divergence between Netanyahu and Abbas?
A.
The former did not get Obama's help while the latter did.
B.
They did not reach any agreement on the construction issue.
C.
They diverged in the place where they were going to hold talks..
D.
The former refused to discuss the final-status issues while the latter insiste
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