A person is standing on a staircase. He walks clown 4 steps, up 3 steps, down 6 steps, up 2 steps, up 9 steps, and down 2 steps. Where is he standing in relation to the step on which he started A: 2 steps above B: 1 step above C: the same place D: 1 step below E: (E) 2 steps below

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2022-06-06 问题

A person is standing on a staircase. He walks clown 4 steps, up 3 steps, down 6 steps, up 2 steps, up 9 steps, and down 2 steps. Where is he standing in relation to the step on which he started A: 2 steps above B: 1 step above C: the same place D: 1 step below E: (E) 2 steps below

2022-05-29 问题

儿童3—12个月的体重（千克）估算公式（） A: A（月龄＋9）÷2 B: B（月龄-9）÷2 C: C（月龄＋8）÷2 D: D（月龄-6）÷2 E: E（月龄＋6）÷2

2021-04-14 问题

A=[1,2,3;4:6;7:9]; C=[A;[10,11,12]], D=C(1:3,[2 3]) E=C(2,[1 2]) E=(__________________)

2022-05-30 问题

设A，B，C均为n阶方阵，且AB=E，BC=2E，则(A-C)2B= A: .( B: .( C: 2 D: ( E: 2 F: []

2022-06-17 问题

短时记忆的信息容量为（）个组块 A: 5±7 B: 5±2 C: 5±9 D: 7±2 E: 9±2

2022-06-04 问题

短时间记忆容量一般为() A: 5±2 B: 8±2 C: 9±2 D: 6±2 E: 7±2

2022-05-27 问题

短时记忆的记忆容量一般为（） A: 8±2 B: 5±2 C: 6±2 D: 7±2 E: 9±2

2022-06-06 问题

1 Socrates was ___________________. He is a patron saint of philosophy. 2 He was born in in _. 3 As a young man, he had been a brave soldier ________. 4 In middle age, he _. 5 In 399 BC, _______________________________.

1 Socrates was _______________________. He is a patron saint of philosophy. 2 He was born in ________ in _______. 3 As a young man, he had been a brave soldier ____________________________. 4 In middle age, he ___________________________________. 5 In 399 BC, _______________________________________________.

2022-05-27 问题

短时记忆的容量一般有（）个记忆单位 A: 11±2 B: 9±2 C: 7±2 D: 5±2 E: 3±2

2022-06-06 问题

如图，△ABC中，DE∥BC，且AD：DB=2：1，那么DE：BC= A: 2：1 B: 1：2 C: 2：3 D: 3：2

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