具有通过说服教育、培训等方式,帮助、教育、服务人等职业特点的人在霍兰德的职业性向理论中属于()型。
A.实际型
B.调研型
C.艺术型
D.社会型
参考答案:D
选出正确的单词,把序号写在横线上。
1. A teacher works in a __________ (A. shop B. market C. school).
2. A clerk works in a __________ (A. school B. store C. restaurant).
3. A __________ (A. waiterss B. businessman C. clerk) works in a restaurant.
4. A waiter works in a __________ (A. store B. restaurant C. school).
5. A __________ (A. businessman B. doctor C. cashier) works in an office building.
某玻璃中含Na2O、CaO、SiO2的质量比约为10∶9∶58,则此玻璃的组成为 [ ]
A.Na2O·CaO·6H2SiO3
B.Na2O·CaO·6SiO2
C.2Na2O·2CaO·9SiO2
D.6Na2O·6CaO·SiO2