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【单选题】
围神经系统不包括()。
A.
脊神经
B.
脑神经
C.
脊髓
D.
内脏神经
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举一反三
【单选题】Which of the following is true about the present swine flu viruses?
A.
The viruses can infect different species.
B.
The genes of the viruses come from pigs.
C.
The viruses mix genes from different species.
D.
The genes of the viruses were made artificially.
【单选题】Viruses usually have two phases to their execution, the infection phase and the(75)phase. The later phase is optional, since stone viruses simply reproduce.
A.
reproduce
B.
proliferation
C.
defend
D.
attack
【简答题】It is proved that influenza viruses come from the viruses in ______.
【单选题】(2019 地区一模 ) You should exercise more so as to keep ______ and you can work efficientl y.
A.
confident
B.
outgoing
C.
proud
D.
energetic
【单选题】By the age of two, Heidi could count to 40, draw pictures of people, and read books ________ for seven­year­olds.
A.
meaning
B.
meant
C.
being meant
D.
to mean
【单选题】淋巴结内的体液免疫应答主要使哪一结构发生变化
A.
A髓质增大
B.
B深层皮质增大
C.
C淋巴小结增多增大
D.
D淋巴索增粗
E.
E淋巴窦增大
【单选题】'Viruses waiting for a disease' refers to ______.
A.
those viruses carried in the blood of animals
B.
some viruses which are at present harmless to man
C.
the viruses that reproduce in man without making him ill
D.
the still-not-yet-discovered viruses in the jungle
【单选题】There are so many viruses on the Internet. If ____ accidentally, the viruses may make your computer break down.
A.
downloading
B.
to be downloaded
C.
downl oaded
D.
being downloaded
【单选题】There are ______reasons for people writing viruses.
A.
three
B.
at least three
C.
over two
【单选题】______ is not a proper procedure for a lashing of the timber deck cargo.
A.
to be efficiently attached to the deck stringer plate or other strengthened points
B.
to pass over the timber deck cargo
C.
to be shackled to eye plates
D.
to be applied not contacting with the timber deck cargo
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