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【多选题】
下列符合苯氧乙酸酯类降血脂药物的构效关系的是( )。A.
异丁酸结构是产生活性的重要基团；
B.
增加苯基数目可使活性增强；
C.
碳链长度以n = 3为最佳；
D.
在α碳原子上再引入其它芳基或芳氧基取代得到的化合物也能显著降低甘油三酯的水平。
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【单选题】We decided to take _____ early supper in ________ beautiful restaurant. [ ]
A.
/; the
B.
the; a
C.
an; /
D.
an; the
【简答题】某企业(一般纳税人)从外地购进原材料一批，取得的增值税专用发票上注明材料价格为10000元，增值税额为1 700元，另外支付运费800元，支付装卸费200元，运费的增值税扣除率为7%，该材料的采购成本为（ ）元。
【单选题】听力原文：M: Come in Emily and take a seat. F: Thanks. M: So, where do we start? Should we begin with a look at last year and then go on from there? F: Fine. M: So, how do you feel you've done in your firs...
A.
some time last year.
B.
one year ago.
C.
over a year ago.
【单选题】两个或两个以上的申请人在同一种商品上以相同或相似的商标在同一天申请注册的，商标局应当公告( )。
A.
申请在先的商标
B.
申请人效益较好的商标
C.
使用在先的商标
D.
影响力更大的商标
【单选题】According to the text, the balance of nature is____.
A.
something which we should not take for granted
B.
most frequently apparent when it is upset
C.
only now becoming of interest to scientists
D.
very difficult to preserve
【单选题】According to the speaker, what should we do to prevent a population explosion?
A.
To take actions or assist the poorer countries to do so.
B.
To bear less children generation by generation.
C.
To develop the system of welfare greatly.
D.
To let poor countries learn from rich countries.
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