灌木宜植于( )的边坡上,用以降低流速,促使泥沙淤积。
A.1:1.0
B.1:1.5
C.1:2.0
D.1:2.5
参考答案:B
血时间是指皮肤经特定条件外伤后,_______________所需时间即出血时间(bleedingtime,BT)。此过程反映了____________与____________的相互作用,包括内皮下组织与血小板粘附(通过vWF的作用)、血小板的聚集和释放反应以及PGI2与TXA2的动态平衡。
---What about ______ conference you attended last week?
---To tell the truth, it was too boring, you know, _____ conference like that.
A.a, the
B.the, /
C.the, a
D.the, the