现代化的穴盘苗生产的种子发芽有时可以在温室内进行。
参考答案：对
She has a gift for creating an atmosphere for her students ______ allows them to communicate freely with each other.
A．which
B．where
C．what
D．who
肾结石手术肾盂造口管拔管前应夹管（）
A.7天内
B.10天
C.14天
D.2～3天
E.7天
