常温常压井开钻前应测量钻具漂移情况,可开钻的条件是斜度不大于()度。
A、0.5度
B、1度
C、2度
D、3度
参考答案:A
He collected information on 1,000 people, whose IQ when they were ten years old.
A.is tested
B.has tested
C.would test
D.had been tested
急性病毒性肝炎时,最常见的炎症细胞是()
A.嗜酸性粒细胞
B.巨噬细胞
C.单核细胞
D.淋巴细胞
E.浆细胞