产后血栓性静脉炎的病变多为_____侧性,多于产后_______周发病,表现为寒战、高热、反复发作,持续数周,不易与盆腔结缔组织炎鉴别。
参考答案:单侧;1~2
A,B,C,D四个数的和为59,问
A2+B2+C2+D2
A3+B3+C3+D3
A4+B4+C4+D4
A5+B5+C5+D5
四个数中共有几个奇数?
— Would you like to come to the dinner party here on Saturday?
— Thank you. I'd love to, _____ I'll be out of town at the weekend. [ ]
A. because
B. and
C. so
D. but