自然人被宣告为失踪人的条件：（）

单项选择题以宽度相等的条形高低来表示各组频数或频率大小的图形为（）。 A. 柱形图 B. 条形图 C. 饼形图 D. 圆环图 E. 趋势图

未知题型 For people over age 50, it's especially important to get mere nutrients.A.YB.NC.NG

未知题型甲年过三十未婚，暗恋同事乙。一日，甲在乙门外拾得一本像册，发现正是乙的影集，如获至宝，将其照片悬挂于室内鉴赏，并利用电脑合成技术，将自己的照片与乙的照片合成在一起，制作成画册，题名为”爱的宣言”，向朋友炫耀。甲的行为：（）

未知题型听力原文： Some students at the Open University left school 20 years ago. Others are younger but all must be at least 21 years olD.This is one example of how the Open University is different from all other universities. Its students must either work full-time or be at home all day, for instance, mothers of families. They do not have to pass any examinations before they are accepted as students. This is why the university is called 'open'. The university vas started in order to help a known group—people who missed having a university education when they were young.The first name for the Open University was 'The University of the Air'. The idea was to teach 'on the air', in other words, on radio and television. Most of the teaching is done like this. Radio and television have brought the classroom into people's homes. But this, on its own, is not enough for a university education. The Open University student also received advice at one of the 283 study centers in the country. In 36 weeks of the year he has to send written work to a 'tutor', the person who guides his studies. He must also spend 3 weeks every summer as a full-time student. Tutors and students meet and study together, as in other universities. At the end of the Open University's first year, the results were gooD.Three out of every 4 students passed their examinations. If they do this every year, they will finish their studies in 4 or 5 years.(33)A.Because it isn't closeD.B.Because its door is open.C.Because the students have to pass all examinations before entering it.D.Because there is no examination before they are accepted as students.

未知题型以下哪些是可变更、可撤销行为（）

未知题型单击命令按钮时，下列程度段的执行结果为( )。 Private Sub Command1_Click() Dim a As Integer, b As Integer, c As Integer a=2:b=4:c=6 Call S1(a,B) Print 'a='; a; 'b='; b; 'c='; c Call S2(a,B) Print 'a ='; a; 'b ='; b; 'c='; c; End Sub Private Sub S1(x As Integer, y As Integer) Dim c As Integer x=2*x:y=y+2:c=x+y End Sub Sub S2(x As Integer, ByVal y As Integer) Dim e As Integer x=2*x:y=y+2:c=x+y End SubA.a=4 b=6 e=6 a=4 b=6 e=6B.a=8 b=6 c=6 a=8 b=6 c=6C.a=4 b=6 e=6 a=8 b=6 e=6D.a=8 b=6 c=6 a=4 b=6 c=6

未知题型甲、乙均为1979年6月30日出生，甲1997年初参加工作，乙在高中读书。1997年5月31日，甲、乙与丙发生口角，且将丙打伤。丙住院两个月康复，并于1997年8月1日向法院起诉，要求甲、乙赔偿医药费5千元。本案中，丙的医药费应由谁承担？（）。

多项选择题 The salutation should ______. A、be the beginning part of the Body B、be the beginning part of the letter C、be the title of the addressee D、usually start with Dear

未知题型赵某有事出国，走前把自己的一辆汽车交同事粱某保管，并约定保管期限为一年。双方对保管费未作约定，则（）。

单项选择题亚里士多德对柏拉图的态度是