儿童时期会厌呈哪种形状:()
A.S型
B.A型
C.Q型
D.V型
E.L型
参考答案:C
There is a big garden in the neighborhood, ______ actually has become a good place for people to meet and communicate.
A.where
B.in which
C.that
D.which
检测书写笔的书写性能时,应使用()检测仪器。
A.徒手划线器
B.划圆书写机
C.减压仪
D.划格器