将变红的果实采收后，用文火烘或置沸水中略烫并及时除去果核，再进行干燥的药材是（） A

— ______________ is his grandfather?

— Fine. Look! He's doing taijiquan. [ ]

A. How

B. How much

C. How many

31. _____his being late again,he lost his job and had to stay at home.

A．Owe to

B．As result of

C．In case of

D．Because

颅内常见转移癌的原发病变是（）

A.肺癌，消化道肿瘤，膀胱癌

B.消化道肿瘤，皮肤黑色素瘤，子宫肿瘤

C.肺癌，黑色素瘤，泌尿生殖系肿瘤，消化道肿瘤

D.子宫、膀胱肿瘤，甲状腺癌，乳腺癌

E.皮肤黑色素瘤，子宫肿瘤，消化道肿瘤，甲状腺癌及骨肿瘤

巴黎是一座世界历史名城，名胜古迹比比皆是，举例说明巴黎的艺术建筑？

无机态氮的生物固定：