诊断急性胆囊炎时,需排除下列哪项疾病
A.急性阑尾炎
B.急性胃肠炎
C.急性胰腺炎
D.急性肾炎
E.急性肝炎
参考答案:C
复盘需要用不同()的自粘贴纸,以示区别。
A.符号
B.种类
C.颜色
D.文字
It is usually not quite cold in this area in March, but sometimes temperature __________be very low.
A.should
B.can
C.must
D.shall