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【简答题】
根据我国《海上交通》,未经主管机关批准,不得在___设置,构筑设施或者进行其他有碍航行安全的活动。 1港区锚地 2航道 3通航密集区 4主管机关公布的航路内 A. ①②③ B. ②③④ C. ①②③④ D. ①②④
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举一反三
【单选题】You have just configured a static default route on router TK1. What is the purpose of a default route?（）
A.
It is a route to be used when the routing protocol fails.
B.
It is a route configured by an ISP that sends traffic into a corporate network.
C.
It is a route used when a packet is destined for a remote network that is not listed in the routing table.
D.
It is a route manually configured for a specific remote network for which a routing protocol is not configured.
E.
It is used to send traffic to a stub network.
【单选题】What is the role of route preference?（）
A.
It is used as a tiebreaker when the same prefix is available through multiple protocols.
B.
It is used to determine the preferred path to a given destination.
C.
It is used to select the best route between multiple equal-cost paths.
D.
It is used to select which routing table to use for forwarding.
【简答题】（ ）泛指在植物细胞、组织和器官离体培养过程中，受到非生物因子的诱导，进而导致培养细胞和再生植株中产生遗传变异或表观遗传变异的现象。
【单选题】What is the first step in BGP route selection?（）
A.
The local router prefers the route with the shortest AS Path.
B.
The local router verifies that it has a route to the BGP Next Hop IP address.
C.
The local router prefers the route from the peer with the lowest peer ID address.
D.
The local router prefers the route learned from an EBGP peer over a route learned from an IBGP peer.
【单选题】关于订立书面劳动合同,下列哪一选项是正确的?()
A.
小王在某公司已工作满半年，若小王多次要求，该公司拒不签订书面合同，则双方依法解除劳动合同后，该公司不需要支付经济补偿
B.
小王在某公司工作不足1个月，若经小王多次要求，该公司拒不签订书面劳动合同，则双方依法解除劳动合同后，该公司不需要支付经济补偿
C.
小王在某公司已工作满半年，若经该公司书面通知后，小王拒绝与该公司签订劳动合同，则双方依法解除劳动合同后，该公司不需要支付经济补偿
D.
小王在某公司工作不足1个月，若经该公司书面通知后，小王拒绝与该公司签订劳动合同，则双方依法解除劳动合同后，该公司不需要支付经济补偿
【单选题】体细胞无性系变异（ somaclonal variation ） ：泛指在植物细胞组织和器官离体培养过程中受到 的诱导，进而导致培养细胞和再生植株中产生遗传变异或表观遗传变异的现象。
A.
非生物因子
B.
生物因子
C.
病害
D.
虫害
【单选题】__________变异是指植物细胞、组织和器官在离体培养过程中产生的遗传变异或表观遗传学变异，这类变异能遗传到下一代。
A.
辐射
B.
自然
C.
体细胞无性系
D.
实生
【简答题】植物组织和细胞培养物在培养过程中产生的变异被称为 。
【单选题】What is the role of route preference?（）
A.
It is used as a tie breaker when the same prefix is available through multiple sources
B.
It is used to determine which routes to accept into the routing table
C.
It is used to select the best route between multiple equal-cost paths
D.
It is used to select which routing table to use for forwarding
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