Maria lives in ______. She's an ______ and a ______. She's ______ and ______. She's at 7:30 at night on ______ and she's on channel 4 in the afternoon on _____.

写出下列指令运行结果：A=ones(2,5);A(:)=1:10;s=[2 3 7];A(s)Sa=[10 20 30]A(s)=Sa

Let's meet at 7: 30 outside the gate of___? A: the People's Park B: the Peoples' Park C: the People Park D: People's Park

中国大学MOOC: 写出下列指令运行结果：A=ones(2,5);A(:)=1:10;s=[2 3 7];A(s)Sa=[10 20 30]A(s)=Sa

--What's on the poster there?--________ A: This is mine. B: It’s at 7:30 p.m., January 1. C: I’m Jack from England. D: Oh, there is going to be a basketball.

轴：Φ30s5、 Φ30s6、 Φ30s7、 Φ30s8它们的基本偏差是 ( )。

下列纬线中，按由南向北排列顺序正确的是（） A: 30°S、15°S、15°N、30°N B: 30°N、15°N、15°S、30°S C: 10°S、20°S、30°S、40°S D: 40°N、30°N、20°N、10°N

设关系R和关系S的元数(属性的个数)分别是3和4,元组数分别为5和6,则R与S自然连接所得到的关系,其元数和元组数分别为(<br/>)。 A: 7和11 B: 12和30 C: 小于7和小于30 D: 等于7和小于等于30

We can enjoy a fashion show _____. A: at 7:30 pm on 7 March B: at 7:30 am on 7 March C: at 7:30pm on 8 March

中国大学MOOC: 轴：Φ30s5、 Φ30s6、 Φ30s7、 Φ30s8它们的基本偏差是 ( )。