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参考答案:
举一反三
【单选题】表达式"12"+"10"的结果是
A.
22
B.
1210
C.
"22"
D.
"1210"
【判断题】冷冻精液配种,要求精液的成活率0.6以上。
A.
正确
B.
错误
【单选题】人体在深夜里要比在白天分泌更多的抑制疼痛的荷尔蒙。因此,在夜间进行手术的外科病人需要较少的麻醉剂。因为大量的麻醉剂会对病人造成较大的危险,所以如果手术经常在夜间进行,就会减少外科手术的风险。下列哪项如果正确,最能反对在夜间进行手术会减少外科手术风险这个观点?()
A.
医院在夜里的能量消耗通常比在白天少
B.
出生在午夜至早上7点之间的婴儿要比出生在其他时间的多
C.
在一年期间,人的生物钟对人们暴露于日光照射之下的次数的变化有所反应而发生轻微的转变
D.
尽管一些人已习惯于夜间工作,但夜间其手的灵巧程度和精神警觉性比白天时差
【单选题】以下______不是对船用油水分离器的要求。
A.
经分离的污水应能满足公约规定的排放标准
B.
能自动排油
C.
在船舶倾斜25°时仍能正常工作
D.
构造简单、体积小、重量轻,易于拆洗和检修
【单选题】发动机熄火后,应立即()点火开关。
A.
切断
B.
不必切断
C.
保留10min
D.
接通
【判断题】表达式: "520abc"+10的值为530( )
A.
正确
B.
错误
【多选题】用端铣法加工平面的质量主要取决于( )。
A.
铣刀转速
B.
铣刀直径
C.
铣刀主偏角
D.
铣刀的圆柱度
E.
铣刀的刃磨质量
F.
铣削余量
G.
铣床主轴与进给方向的垂直度
【单选题】下列哪个物体的惯性最大?
A.
停靠在站台的高铁
B.
沙滩上晒太阳的海狮
C.
树上的小鸟
D.
奔跑中的猎豹
【单选题】以下 不是对船用油水分离器的要求。
A.
经分离的污水应能满足公约规定的排放标准
B.
能自动排油
C.
在船舶倾斜25°时仍能正常工作
D.
构造简单、体积小、重量轻,易于折洗和检修
【单选题】图中尺寸标注正确规范的是( )【图片】
A.
(1)
B.
(2)
C.
(3)
D.
都不正确
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