什么是多发性硬化(MS)?
参考答案：
MS是以CNS白质脱髓鞘病变为特点，遗传易感个体和环境因素作用的自身免疫病。
The smile on Mother's face suggested she____________. [ ]
A. was glad
B. was surprised
C. is pleased
D. was annoyed
( )是还款能力出现明显问题，依靠正常收入不能保证还本付息，本息逾期90天以上的贷款。
A．次级类贷款 B．可疑类贷款 C．损失类贷款 D．关注类贷款
was annoyed