【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.
【单选题】If you go to the park tomorrow morning, _____. [ ]
【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
【判断题】发明专利的保护期限为 20 年,实用新型和外观设计的保护期限为 10 年,均自申请之日 起算。
【简答题】Why does he feel proud? Because he has helped to make the park ______.
【简答题】如何理解科学发展观的历史地位和指导意义?
【简答题】如何理解科学发展观的历史地位和指导意义?