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【单选题】
Approaching a anchorage in fog, you hear one short, one prolonged, and one short blast in that sequence on a ship’s whistle. This indicates ______.A.
A vessel towed
B.
A vessel not under command and unable to maneuver.
C.
A vessel anchored giving warning of her position.
D.
A vessel stopped dead in the water.
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反馈参考答案：
举一反三
【判断题】In assessing training needs, an examination of production efficiency, labor costs, turnover, and accidents would be part of task training needs analysis.
A.
正确
B.
错误
【简答题】Previewing Task for Session 4.docx proof reading_sound training.mp3:
【简答题】在什么情况下无须变化坐标?
【简答题】TI (治疗指数):
【多选题】The development of a training program for any task requires managers to:
A.
Determine how the task is to be done
B.
Plan the training session
C.
Present the training session
D.
Evaluate the session's effectiveness
E.
Retrain at the proper interval
【单选题】Task 2-1 How long does the docent training program last?
A.
Four week
B.
Six week
C.
Eight week
D.
Ten week
【单选题】治疗指数(TI)指的是
A.
用来计算安全性，TI越大安全性越低
B.
TI= LD 50/ ED 50
C.
TI= LD 01/ ED 99
D.
TI= LD 50/ L D 50
E.
TI= LD 01/ ED0 90
【单选题】盐酸去氧肾上腺素(C9H13NO2·HCl=203.67)含量测定：精密称取本品0.1129g，置碘量瓶中，加水溶解后精密加入溴滴定液(0.1mol/L)50m1，加盐酸5ml，密塞，放置15分钟，加碘化钾试液10ml，密塞，充分振摇后用硫代硫酸钠滴定液(0.1015mol/L)滴定至终点，消耗硫代硫酸钠滴定液15.33ml，空白滴定消耗硫代硫酸钠滴定液48.25ml，计算样品的百分含量为
A.
0.994
B.
1.005
C.
0.9898
D.
0.99
E.
1.036
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