下列哪项疾病符合血小板第3因子有效性测定活性减低()
A.血小板增多症
B.原发性血小板减少性紫癜
C.继发性血小板减少性紫癜
D.血小板无力症
E.尿毒症
参考答案:D
吗啡的适应证为()
A.颅脑外伤疼痛
B.诊断未明的急腹症疼痛
C.哺乳期妇女止痛
D.严重创伤所致疼痛
E.分娩止痛
—I wonder how much you _______for your services.
---Well, the first two are free while the third costs $30 .
A.bargain
B.charge
C.offer
D.donate