保险机构投资者按照每一保险产品开立1个证券账户。()
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证券公司从事资产管理业务时，不得向客户做出保证资产本金不受损失或取得最低收益的承诺。()
A. 正确
B. 错误
The word "it" in line 21 refers to
A. formation
B. ice
C. thickness
D. weight
It can be inferred from the last paragraph that a glacier
A. can revert to a fluffy mass
B. maintains the same shape through out the glacial process
C. is too cold to be thoroughly studied
D. can contribute water to lakes, rivers, or oceans
According to the passage, which of the following is the LEAST amount of time necessary for
A. Several months
B. Several years
C. At least fifty years
D. A century
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