重症肌无力的临床显著特征是()
A.全身骨骼肌均可无力
B.眼外肌无力多见
C.无力呈活动后加重、休息后好转
D.病情波动
E.感染后肌无力加重
参考答案:C
—Mary, _____ you speak Chinese?
—Yes, only a little. [ ]
A. must
B. need
C. may
D. can
通常称胰头增大,其前后径测值应()
A.>2.0cm
B.>2.5cm
C.>3.0cm
D.>3.5cm
E.>4.0cm