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【判断题】
MCS-51并行口信息有两种读取方式:一种是读引脚,还有一种是读锁存器。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】每一个日本人首先是在家庭的怀抱中学会了 ______________ ,又把学到的运用到更广泛的经济生活和政治领域。
【单选题】What will be the displayed when the following code is executed? final int x = 22, y = 4; y += x; System.out.println("x = " + x + ", y = " + y); .
A.
x = 22, y = 4
B.
x = 22, y = 26
C.
x = 22, y = 88
D.
Nothing, this is an error
【单选题】What does it print out after the below code being executed? x = 2 y = 4 if x>2: if y>2: z = x + y print ("z is", z) else: print ("x is ", x)
A.
nothing
B.
z is 6
C.
x is 2
D.
error
【简答题】在一定温度下,某容器中含有反应物AB与CD各1.00mol,发生下列反应:AB(g)+CD(g)==AD(g)+CB(g)。平衡时每种反应物都有0.75mol被转化,体积不变,则标准平衡常数为( )。A. （9/16） B. （1/9） C. 9 D. 16
【单选题】What is the output of the following code? public class Test{ public static void main(String[] args){ int x = 80000000; while (x > 0) x++; System.out.println("x is " + x); } }
A.
80000000
B.
-21474838
C.
0
D.
21474837
【单选题】What is the output of the following code? x = 0 while x < 4: x=x + 1 print( "x is" , x)
A.
x is 0
B.
x is 1
C.
x is 2
D.
x is 3
E.
x is 4
【单选题】Suppose A class constructor is "A(int i =4, int j=0) {a = i; b = j; } ", execute "A x (1);", what is the value of x.a and x.b?
A.
1 and 0
B.
1 and 4
C.
4 and 0
D.
4 and 1
【单选题】Assume x is 0. What is the output of the following statement? if (x > 0) System.out.print("x is greater than 0"); else if (x < 0) System.out.print("x is less than 0"); else System.out.print("x equals ...
A.
x is less than 0
B.
x is greater than 0
C.
x equals 0
D.
-None
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