When did Erik Weihenmeyer scale North America's highest peak？
A. 1995.
B. 1997
C. 1998
D. 1999
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查询销售金额合计超过20000的商店，查询结果包括商店名和销售金额合计。正确命令是
A. SELECT商店名，SUM(销售数量*单价)AS销售金额合计 FROM商店，商品，销售． WHERE销售金额合计20000
B. SELECT商店名，SUM(销售数量*单价)AS销售金额合计＞20000 FROM商店，商品，销售 WHERE商品．商品号=销售．商品号AND商店．商店号=销售．商店号
C. SELECT商店名，SUM(销售数量*单价)AS销售金额合计 FROM商店，商品，销售 WHERE商品．商品号=销售．商品号AND商店．商店号=销售．商店号 AND SUM(销售数量*单价)＞20000 GROUP BY商店名
D. SEKECT商店名，SUM(销售数量*单价)AS销售金额合计 FROM商店，商品，销售 WHERE商品．商品号=销售．商品号AND商店．商店号=销售．商店号 GROUP BY商店名HAVING SIJM(销售数量*单价)＞20000
Why did the team of 10 Americans had a goal of making history？
A. Because it is the first team that topped Mt. Everest.
Because all of the members of the team are blind men except Erik Weihenmeyer.
C. Because one of its members is Erik Weihenmeyer, who hopes to become the first blind man to clear the famed Mt. Everest.
D. Because all of the members of the team are old men who are eager to climb the famed peak.
假设某个表单中有一个复选框(CheckBox1)和一个命令按钮Command1，如果要在Coranand1的Click事件代码中取得复选框的值，以判断该复选框是否被用户选择，正确的表达式是
A. This．CheckBox1．Value
B. ThisForm．CheckBox1．Value
C. This．CheckBox1．Selected
D. ThisForm．CheckBox1．Selected
How has Weihenmeyer climbed mountains？
A. He has climbed mountains using a stick.
B. He has climbed mountains riding a horse.
C. He has climbed mountains supported by a guider.
D. He has climbed mountains using a system he devised himsel
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