【单选题】He went to the park yesterday.(变为否定句)
A.
He not went to the park yesterday.
B.
He didn't go to the park yesterday.
C.
He don't go to the park yesterday.
D.
He doesn't went to the park yesterday.
【多选题】四等水准观测中的技术要求,当采用S3型水准仪、双面水准标尺进行观测,i角不得超过±20〞,还要求( )。
C.
所有测站前、后视距差的代数和,称为累积差不得大于10
D.
视线离地面最低高度为0.2m,以减少大气折光的影响
E.
四等水准观测,黑红面读数差不得超过3mm。用以检查读数的估读精度。
【单选题】某双大腿挤压伤病人,测得血清钾浓度为6.9mmol每升,脉搏54次每分,伴有心律不齐。应立即注射的药物是
【多选题】四等水准观测中的技术要求,当采用S 3 型水准仪、双面水准标尺进行观测,i角不得超过±20",还要求( )。
C.
所有测站前、后视距差的代数和,称为累积差不得大于10m
D.
视线离地面最低高度为0.2m,以减少大气折光的影响
【单选题】某双大腿挤压伤病人,测得血清钾浓度为6.9mmol/L,脉搏54次/分,伴有心律不齐。应该注射的药物是
【简答题】Why does he feel proud? Because he has helped to make the park ______.
【单选题】在我国,交流电力设备的额定频率为( )。
【单选题】某双大腿挤压伤病人,测得血清钾浓度为69ml/L,脉搏54次/分,伴有心律不齐。应立即注射的药物是
【单选题】He usually ____ grasshoppers in the park. But now he is a kite in the park. [ ]
【简答题】同学们可以先上传草图上来,不少于20个草图方案