____________ congestion control to prevent the congestion. A: close loop B: open loop C: end loop

After exiting the loop, the value of k is ( ).for k=1:3:11 end k‍ A: 3 B: 11 C: 10 D: 7

下列可以作为标号的是（）。 A: loop# B: Loop C: #loop D: ;loop

A circular loop of wire is held in a uniform magnetic field, with the plane of the loop perpendicular to the field lines. Which of the following will not cause a current to be induced in the loop? A: crushing the loop B: rotating the loop about an axis perpendicular to the field lines C: keeping the orientation of the loop fixed and moving it along the field lines D: pulling the loop out of the field

以下代码中哪个是正确的 for 循环语句是？ A: for(a = 0; a < 3; a++) B: for a in range(3) C: for a loop 3: D: for a in range(1,3):

Arduino IDE的默认程序段为（ ） A: Setup()和Loop() B: setup()和Loop() C: Setup()和loop() D: setup()和loop()

_____________ congestion control to remove the congestion in a network once it occurred. A: open loop B: end loop C: closed loop

阅读以下Shell程序，它的输出是_____________ #!/bin/sh echo "ok,nice" loop=0 for str in "hello world" do loop=$(($loop+1)) echo "The $loop loop:$str" done A: ok,nice The 2 loop:hello world B: ok,nice The 1 loop:hello world C: The 1 loop:hello world D: ok,nice

以下代码中哪个是正确的 for 循环语句是（） A: for(a = 0; a &lt; 3; a++) B: for a range(3) C: for a loop 3: D: for a in range(1,3):

以下代码中哪个是正确的 for 循环语句是？ A: for(a=0; a&lt;3; a++) B: for a in range(3) C: for a loop 3: D: for a in range(1,3):