可同时累及两侧肾上腺的疾病有()。
A.转移癌
B.结核
C.增生
D.嗜铬细胞瘤
E.以上都可以
参考答案:E
He ___________ the test, but he wasn’t careful enough.
A.was able to pass
B.must have passed
C.could have passed
D.might be able to pass
简述产品的含义(整合的产品)。