玻璃仪器与金属器物的灭菌（）。
A.生物安全柜本身无风机
B.层流技术净化空气
C.柜体完全气密
D.压力蒸汽灭菌
E.高温烘烤
参考答案：E
What is the baby __________ now?[ ]
A. doing
B. do
C. does
The Total Physical Response method, put forward by ______, is a language teaching method which attempts to teach language through physical activity.
A．James Asher
B．Caleb Gattegno
C．Charles Curran
D．Georgi Lozanov
