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【多选题】
蔷薇科四亚科中具有不开裂果实的亚科是A.
绣线菊亚科
B.
蔷薇亚科
C.
D.
苹果亚科
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Systematic risk and unsystematic risk
【单选题】径流系数是指一定汇水面积内地表径流量与降水量的比值。城市化可能会提高区域径流系数,原因是
A.
雨岛效应，降水增加
B.
热岛效应，蒸发加强
C.
硬地增加，下渗减弱
D.
绿地减少，蒸腾减弱
【单选题】The WBS is:
A.
An organization oriented family tree of the project.
B.
A task oriented family tree of the project.
C.
A cost centered structure of the project.
D.
Only required on large complex projects where separately identifiable work packages are difficult to construct.
E.
None of the above.
【单选题】If an investor prefers less risk to more risk, then he is .
A.
risk-averse
B.
a risk-lover
C.
a risk-taker
D.
a risk-predictor
【简答题】risk insured/risk covered
【单选题】How are continuous fibers typically oriented in fibrous composites?
A.
Aligned
B.
Partially oriented
C.
Randomly oriented
D.
All of the above
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