皮皮学，免费搜题
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【多选题】
土壤容重测定步骤A.
计算环刀容积（ V ）
B.
称取环刀质量（ G ）
C.
采集
D.
称取环刀与湿土质量（ M ），计算湿土质量 =M-G
E.
测定环样的土壤含水量（ W ）
F.
计算土壤容重
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】One method of determining crankshaft misalignment is by（）
A.
laying a straight edge across the crank webs at the crankpin and measuring the distance to the crankpin in two places
B.
measuring the crank drop on either side of each crank throw while the crankshaft is slowly rotated through one revolution
C.
rotating the crankshaft through one revolution, pausing each 90oof rotation to measure bearing clearances, top and bottom
D.
taking micrometer reading between the crank cheeks opposite the crankpin every 90°of crank angle rotation
【单选题】In a four-stroke/cycle diesel engine, the camshaft rotates at _____.
A.
twice the crankshaft speed
B.
half the crankshaft speed
C.
the same speed as that of the crankshaft
D.
a speed independent of that of the crankshaft
【单选题】有如下程序 main() { char ch[2][5]={'6937','8254'},*p[2] int i,j,s=0 for(i=0i′/0′j+=2) s=10*s+p[i][j]-′0′ printf('%d/n',s)} 该程序的输出结果是
A.
69825
B.
63825
C.
6385
D.
693825
【简答题】crankshaft
【简答题】为了（ ），在贮存和使用易燃液体的区域必须要有良好的通风。
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