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【判断题】
犬疥螨和犬耳痒螨的全部发育过程都在动物体上度过,包括卵、幼虫、若虫、成虫4个阶段,其中雄螨为1个若虫期,雌螨为两个若虫期。A.
正确
B.
错误
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【简答题】This is the balcony. We had breakfast there every morning.
【单选题】Hello, I’m Frank. I’m twenty⁃four years old. I live in Beijing now. There are many tall buildings, big buses and busy streets in this city. My flat (公寓) is on the eighth floor of a ten⁃floor building....
A.
Frank works on a busy street.
B.
Frank is twenty⁃four years old.
C.
There is a park in front of Frank’s flat.
D.
Frank doesn’t like his job because it makes him tired.
【单选题】Hello, I’m Frank. I’m twenty⁃four years old. I live in Beijing now. There are many tall buildings, big buses and busy streets in this city. My flat (公寓) is on the eighth floor of a ten⁃floor building....
A.
furniture
B.
kitchen
C.
balcony
D.
TV
【简答题】yze the character of Willy Loman in Death of a Salesman by Arthur Miller.
【简答题】举例分析你上大学有没有机会成本
【单选题】下列关于蛋白聚糖的叙述中，错误的是( )。
A.
蛋白聚糖由糖胺聚糖和核心蛋白共价连接
B.
蛋白聚糖分子也可含有N-或O-连接寡糖链
C.
先合成二糖单位，逐个加上二糖单位而延长糖链
D.
蛋白聚糖中的糖胺聚糖是简单的二糖单位重复连接
【单选题】下列有关糖蛋白和蛋白聚糖的叙述,错误的是
A.
糖蛋白中糖所占的比例小于蛋白质
B.
蛋白聚糖中蛋白质所占的比例小于聚糖
C.
糖蛋白和蛋白聚糖中糖的结构和性质不同
D.
糖蛋白和蛋白聚糖在体内的分布不同
E.
糖蛋白中是长的多糖链,而蛋白聚糖中是短的寡糖链
【单选题】塑料具有( )等优点
A.
质量轻、比强度高、保温绝热性好
B.
加工性能好、富有装饰性
C.
易老化、易燃、耐热性差、刚性差
D.
质量轻、比强度高、保湿绝热性好、加工性能好、富有装饰性
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