6号圆盘铣刀加工齿轮齿数的范围（ ）。 A: 17～20 B: 26～34 C: 35～54 D: 55～134

让步模式可概括为（）。 A: 26/20/10/4 B: 50/0/-1/0 C: 55/0/0/5 D: 0/0/0/60 E: 8/13/17/22

按智商测定分级，轻度精神发育迟滞的范围为（） A: 70～84 B: 55～69 C: 40～54 D: 25～39 E: 0～25

普通强度混凝土的应力应变关系为（）。 A: σc=fc[（εc/ε0）-（εc/ε0）2] B: σc=fc[2（εc/ε0）-（εc/ε0）2] C: σc=fc[2（εc/ε0）+（εc/ε0）2] D: σc=fc[2（εc/ε0）-2（εc/ε0）2]

110110B转化 十进制 A: 52 B: 53 C: 54 D: 55

From the dialogue, we know that China has _______ minority nationalities and each has _______ languages. A: 55; one or more B: 54; one or more C: 55; one D: 54; more than one

下列程序的运行结果是（ ）。t = 0 while t < 5: print(t, " is less than 5") t = t + 1else: print(t, " is not less than 5") A: 0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 55 is not less than 5 B: 1 is less than 52 is less than 53 is less than 54 is less than 55 is less than 55 is not less than 5 C: 0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 5 D: 1 is less than 52 is less than 53 is less than 54 is less than 55 is less than 5

How old is John Porter? A: 52 B: 53 C: 54 D: 55

我国有多少个少数民族？（ ） A: 56 B: 54 C: 55 D: 57

二进制00111000B转成十进制。 A: 54 B: 55 C: 56 D: 57