男，2岁，自幼牛乳喂养，未及时添加辅食，平素纳差，近半月来腹泻呈水样便，每日4～5次。体检；体重6kg，身高75cm，头围47cm，精神萎靡，心肺听诊正常，腹部皮下脂肪消失

该患儿在治疗过程中，最多发生的问题是（）

A.低钙性惊厥

B.高渗性脱水

C.等渗性脱水

D.低渗性脱水

E.胃肠功能紊乱

用所给词的适当形式填空。

I.  She thinks schoolwork is ______  (important) than ______  (play).

2.  Look! The bird ______ (make) a nest (巢) ______  the tree.

3.  The winter vacation is ______  (come).  Let's ______  (make) the plans in order to

    make our English ______  (study) better.

4,  It's useful for ______  (we) ______  (discuss)  the geography project.

5.  Do you have any______ (interest) in music?

6.  I visited many ______  (place) of interest,