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【单选题】
Which objective of a good speech introduction is fulfilled by the following statement? Today we will explore the three most important forms of intellectual property protection—copyrights, trademarks, and patents.A.
preview the body
B.
establish the speaker’s goodwill
C.
state the importance of the topic
D.
summarize the introduction
E.
relate to the audience
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【单选题】Contrary_____ all advice, he started to climb the mountain during a storm.
A.
on
B.
at
C.
to
D.
against
【单选题】下列关于药物稳定性的叙述,正确的是
A.
通常将反应物消耗一半所需的时间称为有效期
B.
大多数药物的降解反应可用零级、一级反应进行处理
C.
药物降解反应是一级反应,药物有效期与反应物浓度有关
D.
大多数情况下反应浓度对反应速率的影响比温度更为显著
E.
温度升高时,绝大多数化学反应速率降低
【单选题】The mountaineer said he wanted to climb the mountain because
A.
he needs challeges
B.
he wants to get to the top
C.
he has a need to conquer nature
D.
it's there
【单选题】下列关于药物稳定性说法正确的是
A.
酯类、酰胺类药物易发生氧化反应
B.
药物的水解速度常数与溶剂的介电常数无关
C.
与药物带相同电荷的离子催化其降解反应时，如果降低溶剂介电常数，则反应速率常数k增大
D.
荷正电荷药物水解受OH-催化，介质的离子强度增加时，水解速度常数k值减小
【单选题】The prisoner __________ to escape, but he couldn't climb the prison wall.
A.
had an effect
B.
managed
C.
made an effect
D.
made an effort
【单选题】从商业机会到创业项目的大致路径()。
A.
商业机会→机会→评估→创业项目
B.
商业机会→评估→创业项目
C.
机会→商业机会→评估→创业项目
D.
机会→评估→商业机会→创业项目
【单选题】What does the man mean?
A.
He wants to visit his friends.
B.
He wants to climb mountains with them.
C.
He doesn't want to climb mountains.
【单选题】Choose the correct words or phrases to complete the sentences. Although he was warned of the danger, he ____ to his plans to climb the mountain alone.
A.
advocated
B.
advanced
C.
addicted
D.
adhered
【单选题】下列关于药物稳定性的叙述,正确的是
A.
通常将反应物消耗一半所需的时间称为有效期
B.
大多数药物的降解反应可用零级、一级反应进行处理
C.
药物降解反应是一级反应，药物有效期与反应物浓度有关
D.
大多数情况下反应浓度对反应速率的影响比温度更为显著
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