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【简答题】
R1的标称电阻值是 k Ω 。
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举一反三
【单选题】设有以下语句：char x=3,y=6,z;z=x^y<<2;则z的二进制值是
A.
00010100
B.
00011011
C.
00011100
D.
00011000
【单选题】v> How does the flame method work?
A.
v> (a) Each element burns at a different color, so by burning an unknown element we can determine what it is based on the color.
B.
(b) Each element burns at a different temperature by burning at different temperatures we can isolate the desired compound.
C.
(c) Each element burns at a different temperature by burning at different temperatures we can identify the unknown compound.
D.
(d) By timing how long a compound burns we can determine how much of that compound is present.
【单选题】We can inter from the passage that a sense of care______.
A.
does not come until a person grows to be an adult
B.
should be taught to children through actions instead of words
C.
means small acts of kindness
D.
can be learned through watching how kind one is to others and to animals
【单选题】设有以下语句 char x=3，y=6，Z； z=x^y＜＜2； 则z的二进制值是
A.
00010100
B.
00011011
C.
00011100
D.
00011000
【单选题】设有 char x=3,y=6,z;z=x^y<<2; 则 z 的二进制值是( )。
A.
00010100
B.
00011000
C.
00011100
D.
00011011
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