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【单选题】
关于酶原与酶原的激活描述正确的是A.
体内的酶不以酶原的形式存在
B.
酶原激活过程的实质是酶的活性中心形成或暴露的过程
C.
酶原的激活过程也就是酶被完全水解的过程
D.
酶原的激活没有任何生理意义
E.
酶原的激活是酶的变构调节过程
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【简答题】(adopt) His ________ by the kind old man changed his whole life.
【单选题】The king was forced to adopt a new constitution which reduced his powers.
A.
学院
B.
机构
C.
宪法
D.
建筑物
【单选题】His statements sometimes ______ the truth, because of which his colleagues adopt a suspicious attitude towards him.
A.
denote
B.
deviate from
C.
commence to
D.
surface
【简答题】用adopt, adjust 或adapt 完成句子。 1) All his suggestions have been____. 2) This TV series is____from a famous novel. 3)I must____my watch, as it's fast.
【简答题】案例六、某工地新进一批合成高分子三元乙丙橡胶防水卷材，材料员在施工用材料进人建 设工程被使用前必须进行检验验收。根据背景资料，回答下列问题： 三元乙丙橡胶防水卷材质量要求每卷不超过6处，每处面积不大于4mm2项目是 ( )。（单项选择题） A.折痕 B.杂质 C.胶块 D.凹痕 若工程的屋面防水等级为Ⅱ级，则该防水卷材的厚度不应小于( )mm。 （单项选择题） A.1.5 B.1.2 C.3 D....
【单选题】In writing an application, the writer should be ( ) and adopt an( )tone for his letter.
A.
unconfident,optimistic
B.
unconfident,inactive
C.
confident,optimistic
D.
confident,inactive
【简答题】Why did the author adopt “Mark Twain” as his pen name?
【单选题】Which of the following strategies will a presenter NOT adopt to involve his or her audience?
A.
Telling generic jokes.
B.
Making a key-point pause.
C.
Asking the audience a question.
D.
Changing his or her presenting pace.
【判断题】热塑性弹性体,也成热塑性橡胶,是在常温下具有弹性,而在高温下具有塑性的一类新型高分子材料。其具有类似于橡胶的力学性能及使用性能,又能按热塑性塑料进行加工和回收的一类材料。
A.
正确
B.
错误
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