用来衡量一个模块内部自身功能内在联系是否紧密的指标是（）。
A.模块的凝聚性
B.模块的耦合性
C.模块的独立性
D.模块的调用
参考答案：A
In case of your steering gear failed，（）should be exhibited in shapes or lights.
A.not under command
B.restricted in her ability to manoeuvre
C.restrained by her draught
D.underway
