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【单选题】
以下哪一组特征是脊索动物与高等无脊椎动物共同具有的A.
脊索、后口、真体腔
B.
后口、三胚层、真体腔
C.
咽鳃裂、两侧对称、真体腔
D.
神经管、三胚层、两侧对称
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】If the elasticity of demand for peaches is 1.76 and the elasticity of demand for apples is 1.59, then consumers are
A.
more sensitive to a change in the price of peaches than they are to a change in the price of apples.
B.
less sensitive to a change in the price of peaches than they are to a change in the price of apples.
C.
more sensitive to a change in the quantity of peaches than they are to a change in the quantity of apples.
D.
less sensitive to a change in the quantity of peaches than they are to a change in the quantity of apples.
【单选题】关于利润表的说法，错误的是（）。
A.
利润表是一张静态会计报表。而且是年报表
B.
利润表的基本格式主要有单步式和多步式
C.
利润表中一般设有“本月数”和“本年累计数”
D.
利润表中各项目的金额应根据有关损益类科目的本期发生额分析计算填列
【单选题】I missed what was happening because I wasn’t ______ very closely.
A.
noticing
B.
running
C.
watching
D.
glancing
【单选题】Which of the following is correct? i. All linear demand curves have a constant slope and a constant price elasticity of demand. ii. The price elasticity of demand changes while moving along a downward...
A.
i only
B.
ii only
C.
iii only
D.
i and ii
E.
i, ii, and iii
【单选题】与巴黎、米兰、伦敦的时装设计师相比,纽约的设计师在设计上更加注重服装的()。
A.
（1）休闲和简约的表现
B.
（2）色彩和图案的运用
C.
（3）优雅和浪漫的风格表达
【单选题】Which of the following demand functions represents a price elasticity of demand equal to -0.33 and an income elasticity of demand equal to 0.8 at all points along the curve?
A.
Q = 3 - 0.33P + 0.8I
B.
Q = 4.5 - 0.33 log(P) + 0.8I
C.
log(Q) = 1.34 - 0.33 log(P) + 0.8I
D.
log(Q) = 2.34 - 0.33 log(P) + 0.8 log(I)
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