Which picture can show the mouth position of /f/ or /v/?
A: [img=132x111]18032b5ea5bcdb1.png[/img]
B: [img=133x108]18032b5eb4f219c.png[/img]
C: [img=131x112]18032b5ec2901b4.png[/img]
D: [img=130x112]18032b5eceac8ca.png[/img]
A: [img=132x111]18032b5ea5bcdb1.png[/img]
B: [img=133x108]18032b5eb4f219c.png[/img]
C: [img=131x112]18032b5ec2901b4.png[/img]
D: [img=130x112]18032b5eceac8ca.png[/img]
举一反三
- 设f(x)为连续函数，且 [img=217x49]18034a50d8b1b92.png[/img] 则[img=70x25]18034a50e196c62.png[/img] A: 5 B: 4 C: 0 D: -5
- Which picture can show the mouth position of /ʃ/ and /ʒ/? A: [img=136x110]18032b60294dd2b.png[/img] B: [img=134x110]18032b60361c887.png[/img] C: [img=132x111]18032b60424ca79.png[/img] D: [img=134x113]18032b604f06cde.png[/img]
- Which picture can show the mouth position of /θ/? A: [img=134x107]18032b5e2eb5b4d.png[/img] B: [img=130x112]18032b5e3b90eb3.png[/img] C: [img=136x110]18032b5e48ac2ff.png[/img] D: [img=132x115]18032b5e55c3006.png[/img]
- 求不定积分[img=115x46]17da65382f8e1b9.png[/img]； （ ） A: x - (5*log(x + 1))/4 - (3*log(x - 3)) B: (5*log(x + 1))/4 - (3*log(x - 3)) C: x - (5*log(x + 1))/4 - (3*log(x - 3))/4 D: (5*log(x + 1))/4 - (3*log(x - 3))/4
- 设[img=84x22]17e0ab7201ab5da.jpg[/img],且P{2<;X<;4}=0.1,不查表计算P{X<;0}=（ ） A: 1/5 B: 2/5 C: 3/5 D: 4/5