开车郊游遇到雷雨天气时,人应在哪儿是最安全?()
A、小汽车里
B、大树下
C、凉亭里
D、雨伞下
参考答案:A
— Wow! Jerry got full marks again! How lucky he is!
— Not exactly! _______. He makes full use of his time to study. [ ]
A. He is more lucky than hardworking
B. He is not so much lucky as hardworking
C. He is far less hard working than lucky
D. His classmates are no more hard working than he
属于造血干细胞异常导致的贫血包括()
A.再生障碍性贫血
B.骨髓增生异常综合征
C.骨髓硬化症
D.慢性病贫血
E.自身免疫性溶血性贫血