三度原位菌群失调的主要原因是()A．介入治疗与各种导管应用 B．广谱抗菌药物大量应用

肝胃不和恶阻的辨证要点是

A．妊娠初期，呕吐不食，或呕吐清涎
B．妊娠初期，恶心欲呕，晨起尤甚
C．妊娠初期，呕吐酸水、苦水
D．妊娠初期，呕吐痰涎，胸脘满闷
E．妊娠初期，呕吐剧烈，干呕或呕吐苦黄水甚则血水

具有息风镇痉、攻毒散结、通络止痛功效的药物是（）。

A.全蝎、蜈蚣

B.地龙、僵蚕

C.龙骨、牡蛎

D.石决明、决明子

E.天麻、钩藤

Ladies and gentleman,   please fasten your safety belts. The plane________. [ ]

A. is going to be taken        

B. is taking off

C. has taken off      

D. took off

国际互联网是目前世界上第一大互联网，它起源与美国，其雏形是________。

A．NCFC网

B．CERNET网

C．GBNET网

D．ARPANET网

Can you share me the information about Gong Li ________ you got from the Internet?

A. who                                          B. that                                C. what