在MICRO MOTION质量流量计投用前，必须将传感器自身的流量标定系数和密度标定系数输入到变送器的内存中，以补偿其流量和密度的响应特性。
参考答案：对
目前唯一用细胞培养获得减毒株的肝炎病毒是（）
A.HAV
B.HBV
C.HCV
D.HDV
E.HEV
句型转换。
1. The boy is poor at English. (改为同义句)
The boy is ___________ ___________ English.
2. I have a pain in my head. (改为同义句)
I have a ___________.
3. His father went to Hong Kong five years ago. (就画部分提问)
___________ ___________his father ___________ to Hong Kong?
4. There is something wrong with his right leg. (改为同义句)
___________ is wrong with his right leg.
