不属于例行保养内容的是（）。
A、检查螺丝联接紧固情况
B、保持润滑油量合适
C、检查电机运转有无异常声响
D、检查螺杆联接是否合适
参考答案：D
Some minatory experts are sure that the army of that nation _________ with more modern and advanced weapons in the near future, especially the navy.
A．to equip
B．to be equipped
C．will equip
D．will be equipped
湖心沉积土主要是（）
A.角砾
B.卵石
C.粗砾
D.粘土和淤泥
