Which one of the following relationships can describe the relationships in poppy, opium and morphine ( ) A: Plant - crude extract - purified compound B: Crude extract -plant - purified compound C: Purified compound -plant -crude extract D: Purified compound- crude extract -plant

compound duties

Which compound library can be used for drug repurposing? () A: FDA approved library B: Commercial compound Libraries C: Virtual hypothetical compound libraries D: PubChem library

在圆盘表面涂上一层化合物。 A: Apply a layer of compound on the surface of the disc. B: Apply a layer of compound on the coating of the disc. C: Spread a film of compound on the surface of the disc.

The old man always tells the children stories about the heroes in the Long March. A: Simple Sentence B: Compound Sentence C: Complex Sentence D: Compound Compound Sentence

earlite is a kind of ( ). A: Metal compound B: Solid solution C: Mechanical mixture D: Chemical compound

中国大学MOOC: Which one of the following sentences doesn’t contain a compound subject or a compound verb?

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.

A compound bud usually produces:

Which of the following is a compound adjective?