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【单选题】
The boy lay on the grass, with his eyes _______the skyA.
look at
B.
to look at
C.
looking at
D.
looked at
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举一反三
【单选题】As an IP datagram travels from its source to its destination:
A.
the source IP address is changed at each router to identify the sending router
B.
the router uses the destination IP address to consult its routing table
C.
the router does not use the IP addresses in the datagram
D.
the destination IP address is changed at each router to reflect the next hop
【简答题】句型转换。 1. Mona wants to see a documentary. (改为一般疑问句) _____ Mona _____ to see a documentary? 2. My favorite actor is Li Baotian . (对画线部分提问) _____ _____ _____ favorite actor? 3. We like comedies . (对画线部分...
【单选题】In IPV4 datagram header, which field is to ensure that datagram do not circulate forever in the network?
A.
type of service
B.
time-to-live
C.
header checksum
D.
version
【简答题】每空一词 Bill: 小题1: me, Mona. Is this your family 小题2: ? Mona: No, it 小题3: . It’s Toy’s. Bill: Hello, Tony! Is this a photo of your 小题4: ? Tony: Oh , yes , it is . 小题5: you. Bill: Is this 小题6: your sist...
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