可引起继发性血小板增多的疾病是（）
A.溶血性贫血
B.慢性粒细胞白血病
C.真性红细胞增多症
D.骨髓增生异常综合征
E.骨髓纤维化
参考答案：A
Since we have made full preparation for the job interview, there ______ be any trouble in our passing it. [ ]
A. mustn't
B. shouldn't
C. needn't
D. might not
定向井井眼轨迹的井斜角和方位角随造斜工具的装置角增大而增大。
