学历考试2022成考加血提分每日一练(04月19日)

1. [单选题]The ski resorts are usually crowded． There are many people________skiing．

A. enjoy
B. that want
C. who enjoy
D. want

2. [单选题]__________

根据以下内容，回答下面的题目。The death of a child, _51_ one’s own child,is something the mind can hardly comprehend．It seems togo _52_ nature．The end of a life that is still forming_53_ has just begun is an almost unthinkable cruelty．But it happens．Parents sometimes must witness the illness and death of the children_54_ whom they gave birth．And _55_ will ever fill theempty place that the dead child leaves behind．Parents_56_ to die before their children, which is the natural order of life events．When the situation is reversed and a child dies _57_ the parents itseems wrong．Yet we never know why one person dies andanother lives．But we do know _58_ a child is gone, theparents still have a future, as grey and worthless as it may at first seem．Death may take the child, but the love never _59_．The sorrow after a child’s death is one ofthe longest and hardest type of _60_ to live with．And ittakes long to deal with the parents’ own emotions．__________

A. at
B. with
C. to
D. for

3. [单选题]

4. [多选题]维护血管内外和细胞内外水平衡的主要因素是（　　）

A. 血浆中碳酸氢盐^{(bicarbonate)}浓度^{(salt concentration)}
B. 血浆与组织液的晶体渗透压
C. 血浆Ca2+浓度
D. 血浆中O2和CO2浓度
E. 血浆与组织液的胶体渗透压

5. [多选题]等容收缩期的特点是（　　）

A. 心室容积不发生改变
B. 心室内压下降速度最快
C. 房室瓣和半月瓣都关闭
D. 心室内压高于动脉压
E. 心室内压力达到最高值^{(highest value)}．

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