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【判断题】
准确度高,必须要求精密度也高,但精密度高,并不说明准确度高,准确度是保证精密度的先决条件。
A.
正确
B.
错误
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举一反三
【单选题】已知int x,y;,下列switch语句中,正确的是
A.
switch(x*y)
B.
switch { { case 1: x*y; break; case 1,5: x++; case 2: break; case 3,7: y++; } }
C.
switch(x)
D.
switch(x+y/100) { { case x: x*x; break; case x: x*x/100; break; case y: y*y; break; case y: y*y/100; break; } }
【单选题】( ) everyone here today?
A.
Be
B.
Are
C.
Is
D.
Am
【单选题】— ___ everyone here? — No, Jack isn't here. [     ]
A.
Is
B.
Are
C.
Do
D.
Does
【简答题】关联词填空,有两空的题目答案之间用逗号隔开,如:a,b 1. Great changes have taken place in that school. It is no longer _______ it was 20 years ago, _____it was poorly equipped. 2. The shopkeeper did not want to sell the produ...
【简答题】We really want to _______ ________. 我们真的很想尽地主之谊。
【单选题】everyone here today?
A.
Do
B.
Are
C.
Is
【简答题】已知int x,y,z; x=4,y=z=2;x=x==(y=z); 则x的值为_____.
【单选题】—Is everyone here?
A.
ot yet. Look, there _____ the rest of our guests.
B.
come
C.
comes
D.
is coming
E.
are coming
【单选题】已知 int x,y; 执行语句 x=(y=10-5,y*2),y-5; 后,变量 x,y 的值分别是 。
A.
5,5
B.
5,10
C.
10,5
D.
10,10
【判断题】目前选用的黑白摄像机的水平清晰度一般应要求大于500线,彩色摄像机的水平清晰度应要求大于400线。
A.
正确
B.
错误
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