下列图示实验操作中正确的是( ) A. 过滤 B. 倾倒液体 C. 称量食盐 D

题型:选择题

问题:

下列图示实验操作中正确的是(  )

A.

过滤

B.

倾倒液体

C.

称量食盐

D.

检查装置的气密性

考点:过滤
题型:选择题

迷宫密封

题型:选择题

Different people may bid for different things.As for me, I want dream, friendship and   小题1:  admission notice to a famous university most.

Dreams would be on the top of my list.Only by pursuing our dreams  小题2:  we enjoy a meaningful and fulfilled life.Money can buy a cozy life,    小题3:   without dreams, even a millionaire would find his life boring.

A person without friends can  小题4:  be happy.Our life is full of joys and sorrows. 小题5: we need people to share with.Faced with difficulties, we need friends to give   小题6:   comfort and help.Just as a saying goes."A friend in need is a friend indeed."Friendship can help us  小题7:  ups and downs of life, so friendship would be in my list as well.

After working hard for so many years.I deserve to go to a good university,   小题8:  being admitted to a famous university can help me live up to my parents' expectations and bring me a bright future.

题型:选择题

在移臂调度算法中,()算法可能会随时改变移动臂的运动方向。

A.电梯调度和先来先服务

B.先来先服务和最短寻找时间优先

C.单向扫描和先来先服务

D.电梯调度和最短寻找时间优先

题型:选择题

某病人自发性气胸,入院后实施胸腔闭式引流,其想带管活动,活动时要注意的内容除外()

A.活动前要固定好引流管、引流瓶

B.一旦引流瓶意外打碎,应立即将胸侧引流管折曲

C.维持引流瓶的直立状态

D.夹闭引流管

E.保持引流系统的密闭性

题型:选择题

"心脏局部出现矛盾运动"是下列哪种疾病的特点()

A.心肌炎

B.心包积液

C.室壁瘤

D.克山病

E.缩窄性心包炎

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