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【单选题】
喹诺酮类药物的构效关系，描述不正确的是
A.
吡啶酮酸的 A 环是抗菌作用必需的基本药效基团
B.
2 位引入取代基，其活性减弱或消失
C.
5 位取代基中以氟取代时活性最强
D.
7 位以取代或无取代的哌嗪基、吡咯基、吡咯烷基等五元、六元杂环取代为好
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举一反三
【单选题】Lin, Inc. purchased supplies for $700 during 2015. At year end Lin had $ 500 of supplies on hand. The adjusting entry should:
A.
Debit Supplies $200
B.
Credit Supplies $500
C.
Debit Supplies Expense $200
D.
Debit Supplies $500
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【单选题】Questions 17 to 20 are based on the passage you have just heard.
A.
People like foods of their native lands.
B.
Large cities offer international sample of foods.
C.
Even small cities offer various international foods.
D.
People eat foods of other nations to understand their culture.
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【简答题】Purchased $500 of supplies on account.
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【判断题】《五牛图》不是中国传世十大名画。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Cancer develops over a long time, which means that you have years——typically decades——in which to hinder or promote it. Researchers are finding that what you eat may interfere with cancer growth at va...
A.
Right
B.
Wrong
C.
Not mentioned
查看完整题目与答案
【单选题】If a person visits too many places in a short time, .
A.
he will have a better knowledge of other countries
B.
he will eat more various foods
C.
he will not have a good rest
D.
he will not get a true impression of any place
查看完整题目与答案
【简答题】B: Good morning, sir. May I take _____________? G: All right. Thank you very much. B: _____________, sir. May I have your room card? G: Certainly. _______________. B: Thank you, sir. Your room is on t...
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【简答题】连词成句。 1. old   your   how   is   mother   (?) 2. is   how   your   room   large   (?) 3. wants   to   he   football   play   (.) 4. my   smaller   is   bag   Tom's   than  (.) 5. pencil   20   cm   my...
查看完整题目与答案
【单选题】What was purchased by the customer?
A.
Appliances
B.
Grocery items
C.
Clothes
D.
Office supplies
查看完整题目与答案
【简答题】Translate the followings from English into Chinese please. 1. It’s open from 9:30 am 11:00pm. Sorry, sir smoking is not allowed here. Please watch your steps. May I see your room card? We offer 20% di...
查看完整题目与答案
相关题目：
【单选题】Lin, Inc. purchased supplies for $700 during 2015. At year end Lin had $ 500 of supplies on hand. The adjusting entry should:
A.
Debit Supplies $200
B.
Credit Supplies $500
C.
Debit Supplies Expense $200
D.
Debit Supplies $500
查看完整题目与答案
【单选题】Questions 17 to 20 are based on the passage you have just heard.
A.
People like foods of their native lands.
B.
Large cities offer international sample of foods.
C.
Even small cities offer various international foods.
D.
People eat foods of other nations to understand their culture.
查看完整题目与答案
【简答题】Purchased $500 of supplies on account.
查看完整题目与答案
【判断题】《五牛图》不是中国传世十大名画。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Cancer develops over a long time, which means that you have years——typically decades——in which to hinder or promote it. Researchers are finding that what you eat may interfere with cancer growth at va...
A.
Right
B.
Wrong
C.
Not mentioned
查看完整题目与答案
【单选题】If a person visits too many places in a short time, .
A.
he will have a better knowledge of other countries
B.
he will eat more various foods
C.
he will not have a good rest
D.
he will not get a true impression of any place
查看完整题目与答案
【简答题】B: Good morning, sir. May I take _____________? G: All right. Thank you very much. B: _____________, sir. May I have your room card? G: Certainly. _______________. B: Thank you, sir. Your room is on t...
查看完整题目与答案
【简答题】连词成句。 1. old   your   how   is   mother   (?) 2. is   how   your   room   large   (?) 3. wants   to   he   football   play   (.) 4. my   smaller   is   bag   Tom's   than  (.) 5. pencil   20   cm   my...
查看完整题目与答案
【单选题】What was purchased by the customer?
A.
Appliances
B.
Grocery items
C.
Clothes
D.
Office supplies
查看完整题目与答案
【简答题】Translate the followings from English into Chinese please. 1. It’s open from 9:30 am 11:00pm. Sorry, sir smoking is not allowed here. Please watch your steps. May I see your room card? We offer 20% di...
查看完整题目与答案