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

正确答案 ：C

who enjoy

解析：这是there be句型，不能再有第二个谓语，排除选项A和D。Enjoy doing sth，enjoy后跟动词的-ing形式；want to do sth，want后跟动词不定式。定语从句在说明人时用who。选项C是正确的。【句子大意】滑雪胜地通常人满为患。很多人都喜欢滑雪。

[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．__________

正确答案 ：C

to

[单选题]

正确答案 ：

[多选题]维护血管内外和细胞内外水平衡的主要因素是（　　）

正确答案 ：BE

血浆与组织液的晶体渗透压

血浆与组织液的胶体渗透压

[多选题]等容收缩期的特点是（　　）

正确答案 ：AC

心室容积不发生改变

房室瓣和半月瓣都关闭

查看原题 查看所有试题