提升装置的()和(),应在井口公布,()和()运行。箕斗提升必须采用定重装载
A、最大载重量
B、最大载重差
C、严禁超载
D、超载重差
参考答案:A, B, C, D
脊髓丘脑束损伤时可出现
A.痛觉和温度觉减弱
B.触-压觉阈值升高
C.皮肤触-压觉敏感区减小
D.触-压觉的定位受损
— Where is Lily, Lucy? I cannot find her anywhere.
— She have been off long. I saw her clean the window just now.[ ]
A. shouldn't
B. can't
C. mustn't
D. needn't