We are aware that ______, the situation will get worse.
A. if not dealing with carefully
B. if dealt not carefully with
C. if not carefully dealt with
D. if not carefully dealing with
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He grew more and more absorbed in his work, ________he almost forget his meals.
A. that to such an extent
B. to such an extent that
C. to an extant such that
D. such that to an extent
用来给用户提供单选的控件是（ ）。
A. 编辑框控件
B. 超级文本显示控件
C. 单选按钮控件
D. 复选框控件
用户登录和注销在本项目中采用（ ）控件。
A. 复选项控件
B. 菜单选项
C. 编辑框控件
D. 超级文本控件
编辑框控件的输入变量是字符串类型。
A. 对
B. 错
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