蜻蜓排在水草上的卵，孵化而成的（），称为（）。
参考答案：幼虫；水虿
可以减轻或消除胆囊炎症状的膳食是（）
A.低脂膳食
B.高纤维膳食
C.低苯丙氨酸膳食
D.低嘌呤膳食
E.低热能膳食
His room was ________ a mess. How did his mother react ________it? [ ]
A. in; to
B. in; of
C. at; to
D. at; with
