()权责明确,治理关系简单,但由于容易造成董事与经理人员的兼任,使决策权与监督权容易混淆,是诱发经营者腐败的要因。
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铝合金的特点有()
A. 轻质高强
B. 弹性模量大
C. 耐腐蚀性好
D. 低温性能好
E. 密度小
F. 不易加工
High pressure and low pressure alarms must be tested().
A. no earlier than 24 hours prior to loading
B. no later than 24 hours prior to loading
C. anytime prior to loading
D. weekly