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【简答题】
Jim Doherty may not be a born farmer, but he ____ ____ without too much trouble. Not that he has had it easy. That first hard winter he faced must have left him with the _________ to give up and go back to the city. But he managed to ______ _______ it without losing heart. He's picked up a lot of skills since then and made some real _________ to his farm, though without much laborsaving machinery, ________ __________ that old rotary cultivator. I _________ he doesn't make all that much, though he does have his writing to __________ what little __________ he makes from the farm. I guess he does it primarily for the quality of life. Certainly, they seem a happy family and you can often see them out working together, one day spraying apple trees, the next __________ firewood.
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【简答题】铸造方法从总体上可分为普通铸造和特种铸造两大类,普通铸造是指砂型铸造方法,不同于砂型铸造的其他铸造方法统称为特种铸造,常用的特种铸造方法有:熔模铸造、__________、__________、__________、__________等。
【简答题】铸造方法从总体上分为普通铸造和特种铸造两大类,普通铸造是指砂型的铸造方法,不同于砂型铸造的其他铸造方法统称为特种铸造,常有的特种铸造方法有:______________、 ___________、__________、____________、___________________等。
【单选题】已知等效转轴和转角,以下哪个matlab函数可以计算出旋转矩阵?
A.
tr2 rpy()
B.
. rot x ()
C.
. angvec2r()
D.
tr2angvec()
【单选题】Web服务使用的默认协议为( )
A.
HTTP
B.
FTP
C.
HTML
D.
SMTP
【单选题】If you want to go ashore as often as possible, you should choose a passenger ship that
A.
is fully equipped
B.
is not very large
C.
is a member of the IAATO
D.
goes to Antarctica in summer
【简答题】造型方法通常分为 造型和 造型两大类。
【单选题】Web服务使用HTTP协议。默认使用TCP的_______端口。
A.
21
B.
80
C.
110
D.
25
【单选题】First you should choose a _.
A.
seed
B.
cat
C.
friend
D.
plant
【单选题】()服务是目前最常用的服务,使用HTTP协议,默认端口号为80。
A.
FTP服务
B.
SMTP服务
C.
DNS服务
D.
Web服务
【单选题】Telnet协议默认使用的服务器端口号是?
A.
21
B.
24
C.
22
D.
23
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