单项选择题
In general，the extent of the carrier’s immunity，as laid down by the Act，cannot be increased（）contract.
A.in B.with C.by D.on
单项选择题 In determining the scope of anchor line to pay out when anchoring a small boat，one must consider the（）.
单项选择题 In case of your steering gear failed，（）should be exhibited in shapes or lights.
单项选择题 In all but the most severe cases，bleeding from a wound should be controlled by（）.
