患者,男,30岁,以急性阑尾炎住院,早 期腹痛位于脐周,伴恶心、呕吐。其腹痛发生机制是
A.牵涉痛
B.反射性腹痛
C.躯体性腹痛
D.中枢性腹痛
E.内脏性腹痛
参考答案:E
Although this medicine can cure you ________your illness, it has a bad effect____ you.
A.for; in
B.for; on
C.of; on
D.of; at
DCS安全栅故障必须马上()
A、将所有控制阀改手动
B、受影响的控制回路改副线控制
C、受影响的控制回路改手动控制
D、装置立即紧急停工