计算机联锁驱动电路板上的表示灯应与()一一对应。
参考答案:被控对象
- Look! Mrs Green is wearing a black dress today.
- I think she _______ wear red. She looks young in red.
A.should
B.must
C.may
D.need
柱状图(下图)中长方形高度表示甲、乙、丙、丁四种组织中,氧气与血红蛋白的结合情况。试推测甲、乙、丙、丁四种组织中呼吸作用最旺盛的是
A.甲
B.乙
C.丙
D.丁