地下卷材防水层的细石混凝土保护层厚度不少于(),防水层在做保护结构前,应保持地下水位低于卷材底部不少于()。
A. 20mm200mm
B. 40mm200mm
C. 20mm300mm
D. 40mm300mm
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轮箍踏面的剥离现象既有可能是因为制动或疲劳原因产生的,也有可能是近表面的一些非金属、金属夹杂因表面磨耗后裸露出来的。
A. 正确
B. 错误
R1 has correctly configured EIGRP to filter routes using a route map named question. The configuration that follows shows the entire route map and related configuration. Which of the following is true regarding the filtering action on prefix 10.10.10.0/24 in this case?() route - map question deny 10 match ip address 1 route - map question permit 20 match ip address prefix- list fred ! access - list 1 deny 10.10.10.0 0.0.0.255 ip prefix - list fred permit 10.10.10.0/23 le 25
A. It will be filtered due to the deny action in route map clause 10
B. It will be allowed because of the double negative (two deny references) in clause 10
C. It will be permitted due to matching clause 20's reference to prefix - list freD
D. It will be filtered due to matching the implied deny all route map clause at the end of the route ma
在行政处罚听证中,办案人员不可以参加听证。
A. 正确
B. 错误