皮皮学，免费搜题
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【单选题】
Directions: Now you will hear a news report. At the end of the report, you will hear some questions. After you hear a question, choose the best answer from the four choices.A.
To let students have fun.
B.
To teach students to do those sports well.
C.
To let students enjoy climbing mountains.
D.
To show students how to jump out of an aeroplane.
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【多选题】A local area network uses a _____________ or ____________to connect computers together.
A.
hub
B.
protocol
C.
data
D.
router
【简答题】● A glue that holds the whole Internet together is the network layer protocol,(71). Unlike most older network layer protocols, it was designed from the beginning with internetworking in mind. Its job ...
【简答题】一根尺寸为Φ60×3铝铜合金管,外包一层30mm厚的软木及一层30mm厚的保温灰(85% 氧化镁)。管内壁温度-110°C,保温材料外表面温度为10°C,求每米管每小时散失的冷量。(管子的热导率近似按钢取)
【单选题】Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n)
A.
uniform resource locator.
B.
IP address.
C.
third-level domain.
D.
root domain.
E.
child domain.
【简答题】编程题: 在升序数组中插入一个数据 #include #define N 8 int main() { int a[N]={-3,7,9,12,38}; int i,x,n; printf(" 输入要插入的数: "); scanf("%d",&x); n=5; i=n-1; /*********************************/ /************************...
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