重症肌无力常合并以下哪种疾病（）。
A.多发性肌炎
B.胸腺病或胸腺瘤
C.类风湿性关节炎
D.三叉神经痛
E.面神经炎
参考答案：B
如果客户对假币提出质疑，告知客户在（）天内持《假币收缴凭证》向中国人民银行的分支机构或中国人民银行授权的鉴定机构申请鉴定。
A．3天
B．5天
C．7天
D．10天
It has been announced that students shall remain in their seats until all the papers _____.[ ]
A. will be collected
B. were collected
C. have been collected
D. have collected
