You'll become more confident and stronger after you finish your senior school lessons. You see, hard

work ________ character. [ ]

A. puts up  

B. builds up

C. sets up  

D. turns up

静脉麻醉药的特点是( )

A．意识清醒痛觉消失

B．镇静催眠作用

C．对呼吸道无刺激作用

D．麻醉深浅度容易控制

E．镇痛作用