骨髓纤维化患者外周血涂片中常见的红细胞形态异常是（）
A.泪滴形细胞
B.棘细胞
C.靶细胞
D.口形细胞
E.球形细胞
参考答案：A
What is the best guide for determining the proper scope of anchor chain to use for anchoring in normal conditions?（）
A.One shot of chain for every ten feet of water
B.One shot of chain for every fifteen feet of water
C.One shot of chain for every thirty feet of water
D.One shot of chain for every ninety feet of water
建设单位应在双方签订合同后（）内，将其代表的姓名和职责书面告知监理单位。
A.5天，
B.5个工作日，
C.7天，
D.7个工作日
