容积率的上限保证地块开发的效益,防止无效益或低效益开发造成的土地浪费。()
参考答案:错
—Can you hit that bird with your gun, Tom?
—No!It is out of the ______of my gun.
A.length
B.aim
C.distance
D.range
预注下列哪种药物可阻断氯胺酮对脑循环的影响()
A.咪达唑仑
B.丙泊酚
C.硫喷妥钠
D.羟丁酸钠
E.氯丙嗪