1+90=?
A: 1
B: 91
C: 80
A: 1
B: 91
C: 80
举一反三
- 三副应保持CO A: 2/90% B: 1.5/90% C: 2/80% D: 1/80%
- 记录同学成绩的scores数组如下,scores[ 1:3, [2,5]] 取得的数据是________。scores: array([[70, 85, 77, 90, 82, 84, 89], [60, 64, 80, 75, 80, 92, 90], [90, 93, 88, 87, 86, 90, 91], [80, 82, 91, 88, 83, 86, 80], [88, 72, 78, 90, 91, 73, 80]]) A: array( [ [80,92], [88,90]] ) B: array( [ [64,80], [93,86]] ) C: array( [ [85,84],[64,92], [93,90]] ) D: array( [ [64,92], [93,90],[82,86]] )
- 人工授精时,商品兔场适宜的公母比例为( )。 A: A 1∶50~80 B: B 1∶80~90 C: C 1∶100~200 D: D 1∶300~350
- 低血压的判断标准为: 未知类型:{'options': ['[90 mmHg]', '≤90/60mmHg', '[80 mmHg]', '≤80/60mmHg', '[80 mmHg]'], 'type': 102}
- 在成绩表中查询成绩大于等于80且小于等于90的学生。正确的条件表达式是( ) A: between 80 and 90 B: between 80 to 90 C: between 79 and 91 D: between 79 to 91