在原料液组成及溶剂化(S/F)相同条件下,将单级萃取改为多级萃取,如下参数的变化趋势

题型:判断题

问题:

在原料液组成及溶剂化(S/F)相同条件下,将单级萃取改为多级萃取,如下参数的变化趋势是萃取率不确定、萃余率提高。

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题型:判断题
完形填空(共15小题;每小题1分,计15分)
There was a woman in Detroit, who had two sons. She was worried about them, especially(尤其) the younger one, Ben, because he was not doing well in school. Boys in his class played jokes on him because he seemed so    1   . The mother   2   that she would help her sons to do   3   in school by herself. She told them to go to the Detroit Public Library to   4   a book a week and do a book report for her.
One day, in Ben’s class, the teacher held up a rock and asked   5   anyone knew it. Ben put up his hand and the teacher let him   6   . “Why did Ben raise his hand?” all of his.
   7  whispered and wondered. “He    8  said anything. What could he possibly want to say?” To their surprise, Ben not only   9   the rock, but also said a lot about it. He   10  other rocks in its group and even knew   11  the teacher had found it. The teacher and the other students were   12 . Ben had learned this from doing one of his book   13   .
Later Ben became the   14   student of his class. When he finished high school, he went to Yale University and   15   became one of the best doctors in the United States.
小题1:
A.cleverB.difficultC.slowD.quick
小题2:
A.seemedB.decidedC.wonderedD.told
小题3:
A.wellB.badC.rightD.good
小题4:
A.see B.findC.readD.buy
小题5:
A.thatB.ifC.howD.why
小题6:
A.thinkB.leaveC.askD.answer
小题7:
A.classmatesB.studentsC.teachersD.friends
小题8:
A.alwaysB.ever C.sometimes D.never
小题9:
A.foundB.playedC.knewD.heard
小题10:
A.saidB.toldC.calledD.named
小题11:
A.whetherB.whatC.whereD.why
小题12:
A.afraidB.amazedC.worriedD.unhappy
小题13:
A.picturesB.exercisesC.shopsD.reports
小题14:
A.topB.slow C.lowD.rich
小题15:
A.at firstB.at the endC.at lastD.now
题型:判断题

肝性脑病合并酸中毒时不宜()

A.应用谷氨酸钠

B.应用精氨酸

C.生理盐水灌肠

D.口服乳果糖

E.应用抗生素

题型:判断题

患者男,65岁,因“右侧腰腹部持续疼痛7d”来诊。改变体位疼痛无缓解。既往有胆石症病史。查体:T38.5℃,P80次/min,R20次/min,BP110/70mmHg;巩膜无黄染;腹部稍膨隆,腹软,无压痛反跳痛,墨菲征(-),肠鸣音正常;右肾区扣痛明显。

进一步治疗措施包括(提示血、尿常规正常,尿细菌培养(-)。)()

A.右肾盂切开取石

B.输尿管镜钬激光碎石

C.体外振波碎石

D.经皮肾镜碎石

E.腹腔镜右肾盂切开取石

F.右肾切除

题型:判断题

下列行为中构成国家行为的是()。

A.叛乱运动机关的行为

B.经授权行使国家权力的机关的行为

C.一国驻外记者的行为

D.一国大使在非执行职务时的行为

题型:判断题

在任何城市体系中,都有一个城市居于核心地位,发挥主导作用,这就是()

A.中心城市

B.经济区

C.城市区域

D.城市功能

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