Frames to which the tank top and botto

1、Which chart symbol indicates the botto

Which chart symbol indicates the bottom is clay（）.AClyBClaCClDC

2、Henry and Tom（）to the particles at the

Henry and Tom（）to the particles at the Trade Union every Saturday.Aused to goBwere used to goCare used to goDues to go

3、（）is from baseline to top of the upper

（）is from baseline to top of the upper deck breadth at the ship’s side amidships.AExtreme draftBMolded draftCExtreme depthDMolded depth

4、A-frames and cylinder block is held to

A-frames and cylinder block is held together by （） to form a rigid structure.Aconnecting rodsBpiston rodsCtie rodsDjack-bolt

5、On a tank vessel, which of the followi

On a tank vessel, which of the following substances would be burning in a class "B" fire?（）AOilBWoodCRagsDElectrical wiring

6、The fishing boat upset and sank to the

The fishing boat upset and sank to the（）of the sea.AbaseBunder partCbottomDdown place