Tom did not take the camera away because it was just the same camera ________ he lost last week. [      ]

A. which 

B. that

C. whom  

D. as

下列叙述中正确的是( )。

A．接口复杂的模块，其耦合程度一定低

B．耦合程度弱的模块，其内聚程度一定低

C．耦合程度弱的模块，其内聚程度一定高

D．上述三种说法都不对