She ________ at 10:30 every evening. A: go to bed B: is getting up C: goes to bed D: is get up
She ________ at 10:30 every evening. A: go to bed B: is getting up C: goes to bed D: is get up
background:url(2、png),url(1、jpg),url(3、png),url(4、jpg);},表示哪张图片处在最上层() A: 2、png B: 1、jpg C: 3、png D: 4、jpg
background:url(2、png),url(1、jpg),url(3、png),url(4、jpg);},表示哪张图片处在最上层() A: 2、png B: 1、jpg C: 3、png D: 4、jpg
AF：FB=（ ） A: 1：1 B: 1：2 C: 1：3 D: 1：4
AF：FB=（ ） A: 1：1 B: 1：2 C: 1：3 D: 1：4
非圆形管道内的流动阻力,可以用当量直径计算,de=_________。 A: de=d(管子直径); B: de=流通截面积/浸润周长; C: de=2流通截面积/浸润周长; D: de=4流通截面积/浸润周长；
非圆形管道内的流动阻力,可以用当量直径计算,de=_________。 A: de=d(管子直径); B: de=流通截面积/浸润周长; C: de=2流通截面积/浸润周长; D: de=4流通截面积/浸润周长；
1. The phrase "in bed" is pronounced as __________ in real speech. A: / ɪnˈbed/ B: / ɪmˈbed / C: / ˈɪnbəd/ D: / ˈɪmbəd /
1. The phrase "in bed" is pronounced as __________ in real speech. A: / ɪnˈbed/ B: / ɪmˈbed / C: / ˈɪnbəd/ D: / ˈɪmbəd /
Amy usually ________ at 6:30 in the morning. A: goes to bed B: goes home C: gets up
Amy usually ________ at 6:30 in the morning. A: goes to bed B: goes home C: gets up
png的最优值是（） A: -2 B: -6 C: -45/4 D: -7
png的最优值是（） A: -2 B: -6 C: -45/4 D: -7
I’m very lazy. In the morning I never ______. ( A: do my bed B: have my bed C: arrange my bed D: make my bed
I’m very lazy. In the morning I never ______. ( A: do my bed B: have my bed C: arrange my bed D: make my bed
正方形形断面管道（边长为a），水力半径R= ，当量直径de= A: a,4a B: a,a C: a/4,a D: a/4,a/4
正方形形断面管道（边长为a），水力半径R= ，当量直径de= A: a,4a B: a,a C: a/4,a D: a/4,a/4
never have many bed A: never B: have C: many D: bed
never have many bed A: never B: have C: many D: bed