单项选择题

结果集变量ResultSet.TYPE_FORWARD_ONLY是（）。
A、int类型
B、long类型
C、float类型
D、double类型

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单项选择题

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B.
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单项选择题

上海市近年内交通工具发生了较大变化。
A、 There are many changes in the means of transportation in shanghai in recent years.
B、 There have been many changes in the means of transportation in shanghai in recent years.
C、 There have being many changes in the means of transportation in shanghai in recent years.
D、 There has being many changes in the means of transportation in shanghai in recent years.