People often have this belief _______economic development is bad for the environment, but this does not have to be true.

A．what

B．which

C．that

D．when

以下关于解毒剂使用的说法中，正确的是

A．阿托品用于有机磷中毒时宜小剂量

B．阿托品用于沙蚕毒素中毒时宜大剂量

C．亚甲蓝用于高铁血红蛋白症时宜大量

D．亚甲蓝用于氰化物中毒时宜小量

E．解磷定忌用于氨基甲酸酯中毒