伤后无昏迷，3小时后意识障碍（）。
A．脑震荡
B．原发性脑干损伤
C．脑挫伤
D．急性硬膜外血肿
E．脑疝
参考答案：D
花鹿茸具2个分支者习称（）
A."二杠"
B."大挺"
C."门庄"
D."三岔"
E."莲花"
257. It is no use to _____ the stupidity of his behavior to him, because he will never listen to your advice.
A．call out
B．pick up
C．put out
D．point out
