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【单选题】
在曲柄摇杆机构中,当曲柄与 两次共线时,摇杆位于两个极限位置时两处曲柄之间的夹角θ 称为极位夹角。
A.
机架
B.
连杆
C.
连架杆
D.
摇杆
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参考答案:
举一反三
【单选题】The following measures are taken to protect children online EXCEPT
A.
parents will be monitoring Crisp Moderation.
B.
Crisp Moderation will be monitoring the post streams.
C.
parents can reject new friend invitations for their kids.
D.
parents can change privacy setting for their kids.
【简答题】下周上课前请大家在“U校园”平台完成UNIT1 section A 当中 以下练习:1 Readiing comprehension(8个简答题),2 words in use(填单词),3 Expressions in use(填短语)。
【判断题】免疫荧光技术可以将特异蛋白抗原在细胞内定位。
A.
正确
B.
错误
【判断题】免疫荧光技术可以用来对特异蛋白抗原进行定位与定性。
A.
正确
B.
错误
【单选题】The focus of Paragraph 4 is on the ______.
A.
replacement of batteries in harvesters
B.
monitoring of batteries in sensor networks
C.
elimination of batteries in sensor networks
D.
impact of sensor networks on power supply
【单选题】为了简化、统一,国家标准规定了( )种基轴制配。
A.
47
B.
48
C.
49
D.
50
【单选题】为了简化、统一,国家标准规定了( )种基孔制配合
A.
56
B.
57
C.
58
D.
59
【简答题】在慢性盘状红斑狼疮病损区,用直接免疫荧光技术可探测病损部位上皮基底膜区域有免疫球蛋白、补体沉积,形成一条翠绿色的荧光带,称为
【单选题】What is the purpose of the spanning-tree algorithm in a switched LAN?
A.
To provide a monitoring mechanism for networks in switched environments.
B.
To manage VLANs across multiple switches.
C.
To prevent switching loops in networks with redundant switched paths.
D.
To segment a network into multiple collision domains.
E.
To prevent routing loops in networks.
【单选题】在慢性盘状红斑狼疮病损区,用直接免疫荧光技术可探测病损部位上皮基底膜区域有免疫球蛋白、补体沉积,形成一条翠绿色的荧光带,称为
A.
B.
C.
D.
E.
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