The tone of the author in this passage is most probably______.
A．concerned
B．objective
C．optimistic
D．indifferent

A.
A．concerned
B．objective
C．optimistic
D．indifferent


【参考答案】

A
解析：本题是一道判断作者态度语气类问题。根据全文所述内容和作者的遣词用句，不难看出作者是持有担心忧虑的态度的......

(↓↓↓ 点击下方‘点击查看答案’看完整答案 ↓↓↓)