单项选择题
A.5% B.6% C.7% D.8%
A.5%B.6%C.7%D.8%
A.10% B.15% C.20% D.25%
A.10%B.15%C.20%D.25%
A.1 B.2 C.3 D.4
A.11% B.13% C.15% D.17%
A.70% B.80% C.90% D.100%
A.75% B.80% C.85% D.90%
A.1.25x105 B.1.25x106 C.1.25x107 D.1.25x108
A.40mm B.60mm C.80mm D.100mm
A.可以 B.提倡 C.禁止 D.视情况而定