【单选题】【消耗次数：1】
____ native to North America, corn has now spread all over the world.
①
In spite of
②
That it is
③
It was
④
Although
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相关题目
【单选题】
_____native to North America, corn has now spread all over the world.
①
In spite of
②
That it is
③
It was
④
Although
【单选题】
America has a lot of _______ weapons now.
①
aggressive
②
expensive
③
passive
④
expressive
【单选题】
6.English is widely used ______ travelersand business people all over the world.
①
to
②
for
③
as
④
by
【单选题】
The population of the world ______ still _____ now.
①
will; grow
②
have; grown
③
is ; growing
④
is ; grown
【单选题】
Latin America has an __________ labor force and natural resources.
①
wealthy
②
abundant
③
scattered
④
deposited
【单选题】
_____the stress of examinations are over, we call all relax.
①
while
②
Even though
③
Now that
④
For
【单选题】
China has a large population than [填空] in the world.
①
all the countries
②
every country
③
any country
④
any other country
【单选题】
The poet has____ fame all his life, but has never experienced it.
①
pursued
②
followed
③
chased
④
traced
【单选题】
The thieves ____ the waste paper all over the room while they were searching for the diamond ring.
①
spread
②
scratched
③
scattered
④
burned
随机题目
【单选题】
数据保密性指的是（ ）。
①
保护网络中各系统之间交换的数据，防止因数据被截获而造成泄密
②
提供连接实体身份的鉴别
③
防止非法实体对用户的主动攻击，保证数据接受方收到的信息与发送方发送的信息完全一致
④
确保数据数据是由合法实体发出的
【多选题】
以下对于对称密钥加密说法正确的是（ ）。
①
对称加密算法的密钥易于管理
②
加解密双方使用同样的密钥
③
DES算法属于对称加密算法
④
相对于非对称加密算法，加解密处理速度比较快