下列选项中体现社会主义的本质属性和要求的是（）
A．促进人的全面发展和社会和谐
B．实行计划经济
C．建立完全的公有制经济
D．实行产品经济
参考答案：A
根据提示补全句子。
1. Can I (use) your pen?
2. I (not) read a book yesterday.
3. My father____(like) hiking.
4. We (go) to Xi'an by plane last Sunday.
5. Where _____ you go on your holiday?
6. My bag is_____(big) than yours.
7. This ruler is _ ___(long) than that one.
8. I _____ (want) to buy a fan.
9. Lily_____(have) a bad cold yesterday.
10. I hope you will be_____(good) soon.
岩屑荧光分析中采用的光源是（）。
A.自然光
B.红外光
C.紫外光
D.红外线
