单词拼写。

1. Asia is one of the seven c_____ in the world.

2. The famous actress was s_____ by a crowd, as soon as she got out of the car.

3. The _____ (风景) in the mountains is very beautiful.

4. Wealth is not always the _____ (标准) of success.

5. The field has an area of about four _____ (英亩).

男性，75岁。低热、乏力3周。查体：贫血貌，肝、脾肋下未触及。实验室检查：Hb80g/L，WBC5.6×10⁹/L，PLT34×10⁹/L，血片中原始细胞占20％。

考虑诊断为（）。

A.急性白血病

B.结缔组织病

C.再生障碍性贫血

D.恶性淋巴瘤

E.恶性组织细胞瘤