需要意识介入的活动是（）。
A.牵张反射
B.内心演练
C.咀嚼与吞咽
D.屈反射与交叉伸反射
参考答案：B
Our company has been made one of the largest manufacturers in the field of chemical industry.
A．become, in
B．made, in field of
C．became, in the field
D．been made of, in
慢性肾衰竭尿毒症期可出现酸中毒和高血钾。
