What percentage of its turnover does Synthelabo invest in research and development
A. 10%.
B. 15%.
C. 20%.
D. 25%.
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Where does the largest part of revenue come from
A. Consumers and Salons activities.
B. Skincare products.
C. Make-up.
D. Hair care products.
Expressive leaders provide emotional support to individual members.
A. 对
B. 错
All leaders have some personal qualities in common.
A. 对
B. 错
54，西红花粉粒的特征是
A. 极面观呈三角形，角端各有一个萌发孔
B. 呈类球形或长圆形，外壁有细点状条状雕纹
C. 呈球形、黄色、外壁具细刺状突起
D. 呈球形或椭圆形，表面有似网状雕纹
E. 花粉粒少见，呈圆球形，外壁近于光滑
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