对下列哪一种病最好避免做支气管镜检查（）。
A.甲状腺癌
B.主动脉瘤
C.脓肿
D.支气管腺瘤
E.喉麻痹
参考答案：B
—It is _______he often fails in exams_______ makes his parents worried about him.
—So, he has to work whole-heartedly.
A．what, that
B．that, what
C．that, that
D．/, that
抑郁发作的生物学特征一般包括（）
A.旱醒
B.便秘
C.焦虑不安
D.食欲和性欲减退
E.情绪呈晨重夜轻的改变
