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【单选题】
若 a 和 b 均是正整数型变量,以下正确的 switch 语句是( )。A.
switch ( a*a + b*b ) { case 1: case 3: y=a + b; break ; case 0: case 5: y=a-b; }
B.
switch (a*a + b*b); { case 3: case 1: y=a+b; break ; case 0: y=b-a; break; }
C.
swithc a { default : x=a + b; case 10 : y=a-b;break; case 11 : y=a*d; break; }
D.
switch(a + b) { case10: x=a + b; break; case11: y=a-b; break; }
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【简答题】headset jack
【简答题】Direction: Each of the following ten sentences has one word/phrase underlined to be matched by the corresponding word/phrase chosen from the box provided below. You may find in the box more words/phra...
【简答题】Direction: Each of the following ten sentences has one word/phrase underlined to be matched by the corresponding word/phrase chosen from the box provided below. You may find in the box more words/phra...
【单选题】What claim is made about the Olassen Wireless Telephone Headset?
A.
It fits comfortably on any adult.
B.
It works with any wireless telephone.
C.
It was originally developed for the music industry.
D.
It produces better sound than face-to-face conversation.
【单选题】Direction: You are required to complete the following sentence by deciding on the most appropriate word or words from the 4 choices marked A, B, C, and D. If you are now , you need to do more exercise...
A.
in forties
B.
in your forty
C.
in the forties
D.
in your forties
【简答题】Direction: Each of the following ten sentences has one word/phrase underlined to be matched by the corresponding word/phrase chosen from the box provided below. You may find in the box more words/phra...
【简答题】bluetooth headset
【单选题】The World's Best Telephone Headsets The Olassen Wireless Telephone Headset represents a revolution in telephone headset design. Every headset contains two embedded microphones. The first microphone pi...
A.
It has two microphones.
B.
It has adjustable headphones.
C.
It has lightweight earphones.
D.
It has a digital volume control.
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