幼儿游戏主要是一种()。
A.互动游戏
B.实物游戏
C.象征性游戏
D.规则游戏
参考答案:C
Mayor will make an inspection of our school on Monday, ___ you can tell him how hard the situation we are in.
A.where
B.which
C.when
D.that
体内镁主要存在于()
A.骨骼
B.甲状腺
C.肝和脑
D.肌肉
E.血红蛋白