我
- A.in charge of
- B.arranged
- C.decided to
- D.the depth of
- A.In the lower level of the pumproom
- B.In the middle level of the pumproom
- C.In the upper level of the pumproom
- D.On the deck outside the pumproom
- A.water suit
- B.diving suit
- C.immersion suit
- D.swimming suit
- A.only at night
- B.only during restricted visibility
- C.at night and during restricted visibility
- D.at all times
- A.dead-reckoning position
- B.running fix
- C.estimated position
- D.Fix
- A.dead reckoning position
- B.estimated position
- C.fix
- D.None of the above
- A.estimated position
- B.fix
- C.running fix
- D.dead-reckoning position
- A.generators
- B.oil drums
- C.the bridge controls
- D.combustible metals
- A.dead-reckoning position
- B.fix
- C.probable position
- D.running fix
- A.plane tangent at one point
- B.cylinder tangent at one parallel
- C.cone tangent at one parallel
- D.series of cones tangent at selected parallels
