银汞合金中哪一类型的银汞在充填时需采用“轻拍式”的力量()
A.切割型
B.圆球型
C.混合型
D.高铜型
E.低铜型
参考答案:B
找出与句中画线部分意思相同或相近的选项。
1. An elephant is a large animal.
A. big
B. tall
C. heavy
D. thin
2. What' would she like?
A. do; want
B. does; want
C. do; wants
D. does; wants
3. Would you like to have dinner with us?
A. have noodles
B. have bread and milk
C. come to the evening meal
D. help to cook
4. This shirt is only 20 yuan. I want to buy it.
A. too much
B. a little
C. too many
D. just
5. Could you do Something for me, please?
A. Can you help me
B. May I help you
C. Do you need some help .
D. Let me do it
治疗下呼吸道分泌物潴留的方法包括()。
A.吸氧
B.抗生素应用
C.维持酸碱及电解质平衡
D.雾化吸入促进分泌物排出
E.直接吸出下呼吸道分泌物