皮皮学,免费搜题
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搜题
【单选题】
力学性能测试中等同或优于发泡塑料的材料是()。
A.
纸模
B.
BOPP薄膜
C.
PA薄膜
D.
可降解材料
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【判断题】A WTO member state injured by another member state’s subsidies is required to notify the WTO and to consult with the state causing the injury. /span>
A.
正确
B.
错误
【单选题】对肩关节没有内收作用的肌 ( )
A.
、冈上肌
B.
、冈下肌
C.
、胸大肌
D.
、背阔肌
【判断题】A WTO member state injured by another member state's subsidies is required to notify the WTO and to consult with the state causing the injury.
A.
正确
B.
错误
【单选题】According to the WTO Agreement on Safeguards , a WTO member state may not adopt a safeguard measure until it conducts an investigation to determine whether:
A.
the quantities of a product being imported into the territory of the investigating state have increased sufficiently to cause or threaten to cause serious injury.
B.
the injury is to a domestic firm producing the same or directly competitive products.
C.
the increase in the imported products is the actual cause of the injury to the domestic firm producing the same or directly competitive products.
D.
All of the above.
【单选题】如何判定生物安全柜交叉污染防护性能:
A.
在生物安全柜内一侧人工产生微生物(枯草杆菌芽孢) ,在生物安全柜内 另一侧用培养皿采集枯草杆菌芽孢以判定其交叉污染防护能力
B.
在生物安全柜内同侧人工产生微生物(枯草杆菌芽孢) ,并用培养皿采集 以判定其交叉污染防护能力
【单选题】向日葵为什么跟着太阳转是因为?( )
A.
因为地球自转
B.
向光性
【单选题】正则表达式“[e][i]”匹配字符串“Beijing”的结果是( )。
A.
ie
B.
ei
C.
Beijing
D.
Be
【单选题】向日葵为什么跟着太阳转,是因为( )
A.
地球自转
B.
向光性
【判断题】如何判定II型生物安全柜交叉污染防护性能?()。
A.
正确
B.
错误
【判断题】按钮互锁的正反转电路的缺点是易产生电源两相短路故障。()
A.
正确
B.
错误
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