_____ years ago, very large animals called dinosaurs _____ in some areas of the world. [ ]

A. Many million; have been living

B. Million; had lived

C. Several millions of; are alive 

D. Millions of; lived

下列何种情况企业可以解除劳动合同（）。

A.在试用期间，发现员工不符合录用条件

B.女工在怀孕、生育和哺乳期间

C.因工伤残，因病或非因工伤在规定的医疗期限内的

D.员工家庭遇到严重的自然灾害和严重的以外灾害