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【单选题】
Task 2 Start your day off right with our continental breakfast free. Not only do we offer a generous variety of traditional continental foods, but also a couple of hot items each day. Too busy to sit down for breakfast? During the week, you can choose to take away a breakfast bag. We provide high speed Internet access in all guest rooms and common areas. Are you sick of sitting at the desk all day? We provide lap desks in every room to improve your work environment. Didn’t bring your laptop computer with you? Please use our computer and printer located in our business center. We can also provide fax and copy service at the front desk. Our 400 sq. feet meeting space can hold up to 30 people. For an extra fee, we can provide electronic digital equipment. Conveniently located just next to the business center, our meeting space works well for all your business needs. We are located directly off Highway 131 at Exit 78. We are just 2 miles north of the M6-South Beltline. There are multiple restaurants within walking distance. Our address: 755 54 th Street S.W. Wyoming, MI 49509 (616)261-5500, Fax (616)261-9120 Grrso-Hampton @Hilton.com 43. What’s the purpose of providing lap desks in all of the guest rooms?
A.
To improve the work environment.
B.
To connect the business center.
C.
To use fax and copy service.
D.
To speed up Internet access.
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【单选题】Be sure to get there on time, _____? [     ]
A.
will you
B.
do you
C.
don't you
D.
aren't you
【单选题】肉毒杆菌是一种致命病菌,在繁殖过程中分泌毒素。军事上常将这种毒素用于生化武器。人们食入和吸收这种毒素后,神经系统将遭到破坏。该毒素由两个亚单位(每个亚单位为一条链盘曲折叠而成)组成的一种生物大分子,下面是肉毒类毒素的局部结构简式,据此判断下列说法中不正确的是 [     ]
A.
由结构图可知,肉毒类毒素由氨基酸组成,其化学本质是蛋白质
B.
图中该片段由5种单体组成,有4个肽键
C.
一分子肉毒类毒素至少含有1个氨基和1个羟基
D.
高温下可使肉毒类毒素失活,主要原因是高温首先破坏蛋白质的空间结构
【判断题】零件铸造为了保证铸造质量,防止冷却速度不同要求壁厚均匀或者逐渐变化。( )
A.
正确
B.
错误
【单选题】Don't let their words _______ you. Just keep on until you succeed. [     ]
A.
get up
B.
get on
C.
get to
D.
get off
【判断题】蛋白质的基本组成单位是氨基酸,在人体和食物中共存20余种。按照是否能在体内合成,分为必需氨基酸和非必须氨基酸。其中非必需氨基酸不能在体内合成或合成量很少,必须由食物蛋白质供给 。
A.
正确
B.
错误
【简答题】氨基酸是组成蛋白质的基本单位,在人体和食物中有20余种,按照是否能在体内合成分为( )和( )。
【单选题】下列选项属于“卮言“面对的问题的是?
A.
是非之辨
B.
除去是非之辨和大小之分的广漠之言
C.
小大之分
D.
虚无之变
【简答题】铸件为什么要保证壁厚均匀?
【单选题】氨基酸是组成蛋白质的基本单位,在人体和食物中有20余种,按照来源不同分为( )和( )。
A.
必需氨基酸 非必需氨基酸
B.
完全蛋白质 非完全蛋白质
C.
必需脂肪酸 非必需脂肪酸
D.
不完全蛋白质 完全蛋白质
【判断题】卮言是去除小大之分,是非之辩
A.
正确
B.
错误
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