计算题：已知某小区360个call/小时，5次LU/call，1次SMS/call，TCH平均每呼叫使用时长为85秒，SDCCH平均每次使用时长为4.5秒。 ①请分别计算SDCCH话务量和TCH话务量。 ②已知该小区共2载频，non－combined，sdcch配置16个，请问该小区TCH是否有拥塞（呼损按2％计算），说明原因？
第1题：
A. call forth
B. call at
C. call on
D. call off
第2题：
We planned to( ) some friends for the special occasion.
A、call out
B、call on
C、call over
D、call off
第3题：
A. call for
B. call in
C. call on
D. call to
第4题：
A.Incoming Call Reply, Incoming Call Request, Incoming Call Connected
B.Incoming Call Reply, Incoming Call Connected, Incoming Call Request
C.Incoming Call Request, Incoming Call Reply, Incoming Call Connected
D.Incoming Call Request, Incoming Call Connected, Incoming Call Reply
第5题：
A、call for
B、calls for
C、call on
D、call up
第6题：
We ________ many European ports every year
A.call at
B.call for
C.call on
D.call in
第7题：
A、call; arrive
B、will call; arrive
C、call; will arrive
D、will call; will arrive
第8题：
A、call up
B、call for
C、call on
第9题：
A: Hello, I'm Harry Potter.
B: Hello, my name is Charles Green, but ________
A、call my Charles
B、call me at Charles
C、call me Charles
D、call Charles me
第10题：
下面程序的运行结果是( )。 #include＜iostream＞ using namespace std； class A { public： virtual～A() { cout＜＜"call A::～A()"＜＜endl;} }; class B:public A { char * p; public: B(int i) { p=new char[i];} ～B() { delete(p); cout＜＜"call B::～B()"; } }; void main() { A * a=new B(8); delete a; }
A．call B::～B()call A::～A()
B．call B::～B()
C．call A::～A()
D．call A::～A()call B::～B()