[单项选择]The ground is covered ______ snow.


A. of
B. by
C. with

[单项选择]The ground is covered ______ snow.


A. of
B. by
C. with

[单项选择]Who has hallowed this ground


A. The brave people.
B. The living and the dead.
C. The people who are struggling or struggled here.
D. The brave people except us all.

[单项选择]Ann covered it with Christmas lights.

[单选题]Ground, AFR369, push back completed, ready for _______ , information T.
A.taxi
B.departure
C.start up
D.radio check

[单选题]Ground, JAL167, stand D3, request pushback; JAL 167, pushback _______ .
A.permitted
B.cleared
C.allowed
D.approved

[单项选择]

We have already covered the topic of network addresses. The first  (1) in a block (in classes A, B, and C) defines the network address. In classes A, B, and C,if the hostid is all ls,the address is called a direct broadcast address. It is used by a(2) to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a (3) address in an IP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B，and C． In classes A, B, and C, an address with all ls for the netid and hostid (32bits) define a (4) address in the current network.A host that wants to send a message to every other host can use this address as a destination address in an IP packet. However, a router will block a packet having this type of address to confine the broadcasting to the (5) network. Note that this address belongs to class E.

空白（1）处应选择（）
A. datagram
B. function
C. address
D. service

[单项选择]A) concealed C) hidden
B) covered D) disguised.


A. concealed
B. covered
C. hidden
D. disguised.

[单项选择]Which of the following risks are covered by the ALL Risks coverage of PICC Ocean Marine Cargo Clauses( ).
A. war and fire
B. strike and delay
C. aflatoxin and on deck
D. heavy weather and fire

[单选题]Peterson Ground, BAW751, Stand
D, _______ clearance to Winton.
A.let me know the
B.give
C.I want the
D.request

[单选题]—Ground, BAW365, approaching runway 33R. —BAW365, _______ position, aircraft on final.
A.taxi into
B.hold
C.stand
D.maintain

[单选题]—Ground, PIA670, good morning, request start up. —PIA670, expect departure at 50, I’ll call you back for _______ .
A.takeoff
B.departure
C.start up
D.taxi

[单项选择]Under what circumstances is ground transport to the airport free


A. If the transport is between a town and the airport.
B. If a passenger wants to catch a plane.
C. If a passenger has just finished the air trip.
D. If a passenger is at town terminal.

[单选题]The ground speed of an aircraft is _______ by a headwind which would reduce it, or by a tailwind which would increase the ground speed.
A.affected
B.decided
C.determined
D.influenced

[单选题]—Heathrow Ground, GACDK. —_______ calling Heathrow Ground, say again your call sign.
A.GACDK
B.Aircraft
C.Station
D.either B or C

[单项选择]Which of the following is TRUE about ground water


A. It comes from the oceans.
B. It depends on seasonal rain.
C. It is 95% of all water.
D. It collects under the eart