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

"在不同进制的4个数中,最大的一个数是______。" A: (107)8 B: (78)10 C: (01011100)2 D: (ED)16

在ED途径中，1分子葡萄糖经过（ ）步反应就可以快速获得2分子丙酮酸 A: 6 B: 4 C: 8 D: 10

ED WEQWERQWRQWRQWR A: 1 B: 2 C: 3 D: 4

—Showmeyourpresentsforyourparents,willyou?—Look!Thebagisfor______.Andthesunglassesare______. A: Mum;Dad’s B: Mum;Dad C: Mum’s;Dad’s D: Mum’s;Dad

ask(ed) A: want(ed) B: pleas(ed) C: carri(ed) D: help(ed)

Your dad must be better than him.A.Your dad has to be better than him.B.I believe your dad is better than him. A: a B: b

I got 1.bor(-ed, -ing) last time during the lection because the topic was totally not 2. interest(-ed, -ing) for me, it was honestly 3. tir(-ed, -ing) to be there for me.Where do you need an -ed prefix for adjectives here？ A: 1，2 B: 3 C: 4 D: 1

Add -ed or -ion to or remove them from the following words to form new words. -ed content ➝ 1)____________ compressed ➝ 2)____________ complicated ➝ 3)______________ -ion identify ➝ 4)_____________ justify ➝ 5)______________ qualify ➝ 6)______________ illustrate ➝ 7)______________ exhibition ➝ 8)______________ extend ➝ 9)______________ interpret ➝ 10)______________ plant ➝ 11)______________ perceive ➝ 12)______________

可靠安全系数是指（） A: LD/ED B: ED/LD C: LD/ED D: LD/ED E: ED/LD