当V＞0.25βcfcbh0时，应采取的措施( )。A．(A) 加粗箍筋直径或减小箍

绘制渠道纵断面图时，不正确的是（）。

A、比例尺的大小，以能把整个线路缩绘到纸上，又便于进行设计工作为准

B、渠道的纵坡度是指渠道上两点之间的高差与水平距离之比

C、渠道终点比起点应降低的高度=水平距离×纵坡度

D、挖、填深度=地面高程-设计渠顶高程

患者，男。反复感染、出血2个月。检查：全血细胞减少，肝脾肿大，骨髓与淋巴结活检均见异常组织细胞及多核巨组织细胞。其诊断是

A．急性淋巴细胞白血病
B．慢性再生障碍性贫血
C．原发性血小板减少性紫癜
D．恶性组织细胞病
E．慢性粒细胞白血病

有关带状疱疹性睑皮炎的治疗，错误的是（）

A.疱疹破溃有继发感染时，可用抗生素溶液湿敷

B.为预防混合性感染，必要时全身给以抗生素

C.休息、避光、止痛、镇静

D.滴用糖皮质激素类滴眼液防止角膜受累

E.局部可涂龙胆紫溶液或用疱疹净湿敷

During the night, a 50-year-old Vietnam veteran with posttraumatic stress syndrome wakens shaking and tells you that someone is trying to smother him. What is the appropriate response for the nurse in this situation（）

A. "It was a bad dream. You are safe. I’ll stay here with you until you go back to sleep. "

B. "We can talk about it tomorrow. Try to see if you can get back to sleep. "

C. "It was only a dream. There’s nothing to be frightened about. "

D. "I’ll call the physician and see whether I can get you medication to help you go back to sleep. "

运输的合理化的有效措施有哪些？