该化合物可释放有毒烟雾 A: This compound can release poisonous fumes. B: This compound can give off poisonous fumes. C: This compound can give out poisonous fumes.

They took _______ measures to prevent poisonous gases from escaping.

It is these poisonous products _______ can cause the symptom of the flu, such as headache and aching muscles.

It was only a natural response to seeing the poisonous snake crawling towards us.

What's the name of the poisonous flower? A: Snow-on-the-mountain. B: Snow-on-the-ice. C: Snow-on-the-river.

Ways must be found to prevent the poisonous gases ________ polluting the air. A: in B: on C: from D: at

We must find ways to prevent the poisonous gases ________ polluting the air. A: in B: with C: from D: of

." Shennong is credited with identifying hundreds of medical (and poisonous) herbs by personally testing their properties, which was crucial to the development of __.

As a legend goes, Shennong was once affected by 72 poisonous weeds within two days and he drank tea as the antidote.

Tung oil is a powerful drying agent used in varnishes and paints. A: pure B: potent C: poisonous D: permanent