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【单选题】
阅读下面的程序,选择正确的答案?() class StringDemo{ public static void main(String[] args){ String s1 = “a”; String s2 = “b”; show(s1,s2); System.out.println(s1+s2); } public static void show(String s1,String s2){ s1 = s1 +“q”; s2 = s2 + s1; } }A.
ab
B.
aqb
C.
aqbaq
D.
aqaqb
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【简答题】Business Invitation Business invitations can be informal or formal. Although formal invitations are usually sent through the mail, informal invitations via e-mail and phone invitations are becoming mo...
【单选题】根据下列材料，请回答题 Please Fasten Your Seatbelts Severe turbulence （潮流 can kill aircraft passengers. Now， in test flights over the Rocky Mountains， NASA （美国航空航天局）engineers have successfully detected clear-air...
A.
A not very rough storm.
B.
Unexpected disturbed air.
C.
A kind of visible storm.
D.
A storm over mountain ridges.
【单选题】Ladies and gentlemen，please fasten your seat belts．The plane ．
A.
takes off
B.
took off
C.
is taking off
D.
has taken off
【单选题】在新建的图层中,选择渐变工具,按下( )按钮,打开渐变下拉面板,选择透明彩虹渐变,拖动鼠标创建渐变达到如图所示效果。
A.
线性渐变
B.
径向渐变
C.
角度渐变
D.
对称渐变
【单选题】Ladies and gentlemen, please fasten your seat belts. The plane .
A.
takes off
B.
is taking off
C.
has taken off
D.
took off
【多选题】Business invitations can be informal or formal. Although invitations are usually sent through the mail, informal invitations such as(viA. e-mail and phone invitations are becoming more . For most form...
A.
acceptable
B.
occasions
C.
in advance
D.
remind
E.
guidelines
【简答题】Although invitations are usually sent through the mail, informal invitations such as e-mails and phone invitations are becoming more acceptable. 1. ____________________________________________________...
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