某工程项目的招标投标活动中，发现投标人甲以低于成本的报价竞标。这里的成本是指( )

恐龙：蛇( )

A．亚洲人：欧洲人
B．飞鸟：剑鱼
C．德菲列人：因纽特人
D．青蛙：猩猩

患者女性，39岁，月经规律，因下腹部胀痛3天就诊。超声显示：左附件区可见53mm×45mm边界清楚、被膜完整稍厚、内有光带分隔、透声不好的囊肿

对上述囊肿的正确处理方法是（）。

A.建议临床观察经过

B.建议手术切除

C.建议超声引导下穿刺引流

D.建议超声引导下诊断性穿刺

E.建议药物治疗

用所给词的适当形式填空。

1. Edison had over two thousand               (invent) in his life.

2. English               (teach) in our school by Mr Green last term.

3. Perhaps my               (excite) can affect her moods.

4. May I               (introduction) myself to you?

5. I'm learning English, but I still can't speak it               (proper).

6. Fei Junlong and Nie Haisheng are our space               (hero) in China.

7. The               (develop) of China is very quick.

8. I think that watching TV for a long time is               (harm).

9. The old car               (produce) in Germany in the 1980s.

10. There's no               (different) in the results.

蕈样真菌病是一种（）

A.由真菌引起的皮肤化脓性炎症

B.原因不明的非特异性炎症

C.由真菌引起的变态反应性疾病

D.发生于皮肤的淋巴瘤

E.蕈状隆起的皮肤病并真菌感染

傣族青年妇女多束发于头顶，中年妇女多戴黑色高筒帽。