When securing portable tanks, .

A、the lashing angles against sliding should not be higher than 25° Cand against tipping not lower than 45°to 60°C;

B、 the lashing angles against sliding should not be lower than 25° Cand against tipping not higher than 45°Cto 60°C;

C、the lashing angles against sliding should not be lower than 45°to 60°Cand against tipping not higher than 25°C;

D、 the lashing angles against sliding should not be higher than 45°Cto 60°Cand against tipping not lower than 25°C