Which of the following time is proper if you want to make an A: ? B: at 7:00 am C: at 4:00 pm D: at the midnight E: at 4:00 am
Which of the following time is proper if you want to make an A: ? B: at 7:00 am C: at 4:00 pm D: at the midnight E: at 4:00 am
已知am=9，an=8，ak=4，则am﹣2k+n= ．
已知am=9，an=8，ak=4，则am﹣2k+n= ．
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
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
已知数列Sn=2An+（-1)^nn大于一试证明对于任意m大于4有1/A4+1/A5+1/A6+.+1/Am小于7/8
已知数列Sn=2An+（-1)^nn大于一试证明对于任意m大于4有1/A4+1/A5+1/A6+.+1/Am小于7/8
【单选题】28 里面有多少个 7? 列式是 () 。 A.28 ÷ 7=4 B.28 ÷ 4=7 C.7 × 4=28 A. 28 ÷ 7=4 B. 28 ÷ 4=7 C. 7 × 4=28
【单选题】28 里面有多少个 7? 列式是 () 。 A.28 ÷ 7=4 B.28 ÷ 4=7 C.7 × 4=28 A. 28 ÷ 7=4 B. 28 ÷ 4=7 C. 7 × 4=28
已知am=3，an=4，则a3m+2n=____.
已知am=3，an=4，则a3m+2n=____.
已知am=4，an=3，则am+2n=( )
已知am=4，an=3，则am+2n=( )
已知am=4，an=3，则a3m-2n=（ ）
已知am=4，an=3，则a3m-2n=（ ）
简便计算,（7分之5乘7分之4加7分之4）除以7分之4
简便计算,（7分之5乘7分之4加7分之4）除以7分之4
Interview One The peak for text messaging is between ______. A: 10:30 pm and 11:00 pm B: 7:30 am and 8:00 am C: 10:30 am and 11:00 am D: 8:00 pm and 10:30 pm
Interview One The peak for text messaging is between ______. A: 10:30 pm and 11:00 pm B: 7:30 am and 8:00 am C: 10:30 am and 11:00 am D: 8:00 pm and 10:30 pm