在蔬菜作物中提取的酶是(). A.辣根过氧化物酶 B.碱性磷酸酶 C.脲酶 D.葡萄 发布时间:2017-06-13 22:42 │ 来源:www.tikuol.com 题型:单项选择题 B型题 问题: 在蔬菜作物中提取的酶是().A.辣根过氧化物酶B.碱性磷酸酶C.脲酶D.葡萄糖氧化酶E.β-半乳糖苷酶
题型:单项选择题 B型题 完形填空。 It Seemed Like a Good Idea at the Time I really only meant it as a joke. I wasn't trying to steal anything honestly. My friend Matthew started bringing his new cell phone to class last week. He was walking around bragging (吹嘘) about it to everyone. He was saying, "My cell phone can download (下载) the newest 1 off the internet." Then he 2 everyone by downloading a game and starting to play it. The pictures and sound were really 3 . 4 class, he would use his cell phone to watch TV. The rest of us didn't have a phone like 5 , so we had to crowd around him. I was just trying to see the screen, 6 there were so many other kids that I could not see it clearly. I was getting really jealous (嫉妒). But then yesterday, he forgot his cell phone at the end of class. He left it right on his desk. 7 noticed it wasthere except me. I decided to teach him a lesson. I took his phone quietly off the desk, and put it in my own bag. My 8 was to give it back to him the next day. I 9 wanted to see his reaction (反应). Maybe he would stop being such a show-off. But this morning he rushed into class, screaming and yelling (吼叫). He was very 10 and almost mad. Hestarted accusing (指责) different people of 11 his phone, but I had it in my 12 the whole time. He even started fighting with another classmate 13 Matthew was sure that person had taken it. The teacher sent them to the headmaster's office. They 14 got in a lot of trouble. Now I don't know what to 15 ! If I tell him that I took the cell phone, he'll think I stole it. If I don't tell him, then I really did steal it. How did I get into such atrouble? ( )1. A. ads ( )2. A. gave ( )3. A. good ( )4. A. After ( )5. A. hers ( )6. A. and ( )7. A. Everybody ( )8. A. plan ( )9. A. always ( )10. A. happy ( )11. A. losing ( )12. A. desk ( )13. A. if ( )14. A. both ( )15. A. say B. songs B. showed B. bad B. During B. ours B. but B. Somebody B. suggestionB. hardly B. quiet B. stealing B. hand B. because B. all B. take C. films C. lent C. noisy C. In C. his C. then C. Anybody C. dream C. just C. sad C. playing C. bag C. until C. neither C. see D. games D. asked D. unclear D. From D. theirs D. so D. Nobody D. action D. sometimesD. angry D. using D. pocket D. though D. none D. do 查看答案
题型:单项选择题 B型题 某公路项目签约后,承包人无法在工程现场附近找到满足技术规范要求的施工料源和水源,施工中所需砂石料和水源严重缺乏。因此,承包人只得到极远的地方去运这些大宗材料,而且运距愈来愈长,加之路况极差,造成运输负担沉重,工期严重滞后,成本费用直线上升。承包人就此提出在投标时,业主没有在招标文件中将这种情况预先告知承包人。而业主认为根据合同条款的规定,承包人已经认真进行了现场考察,对于施工所用大宗材料的料源和水源应有充分考虑,拒绝任何索赔要求。 (1)作为监理工程师你对此有何看法 (2)承包人应吸取什么经验教训 查看答案
题型:单项选择题 B型题 某种病菌感染人体并侵入细胞内后,机体可以对该靶细胞产生免疫反应,其中有()A.浆细胞接触靶细胞,导致靶细胞裂解,从而使病菌抗原被白细胞介素消灭B.浆细胞接触靶细胞,导致靶细胞裂解,从而使病菌抗原被抗体消灭C.效应T细胞接触靶细胞,导致靶细胞裂解,从而使病菌抗原被外毒素消灭D.效应T细胞接触靶细胞,导致靶细胞裂解,从而使病菌抗原被抗体消灭 查看答案