下列花材中,()为线状花材。
A.唐菖蒲
B.月季
C.银柳
D.非洲菊
E.飞燕草
F.菊花
参考答案:A, C, E
An analyst is creating a new stock market index that is not affected by stock splits. The index the analyst is least likely to develop is:()
A. unweighted.
B. price-weighted.
C. value-weighted.
防止单芯电缆金属护层绝缘,电缆支架,(),()应符合设计和长期安全运行的要求,且无尖锐棱角。