（）显色性很好，发光效率高、功率大，有“小太阳”的美称，但工作中辐射的紫外线较多。
A．高压钠灯
B．低压钠灯
C．氙灯
D．金属卤化物灯
参考答案：C
Before the Hope Project was carried out in this poor area, children here had no _____ to education.
A．approach
B．access
C．attitude
D．attraction
在国家发改委节能中长期专项规划中指出的重点工业包括哪些？
