Nowadays computers _______ process difficult ...

Nowadays computers _______ process difficult problems very quickly.

A.must B.can C.need D.should

九年级英语单选题简单题查看答案及解析

---Nowadays, it’s not very difficult to enter ________ university.

---That’s the fact, but it’s not easy to enter ________ key one.

A. an; a B. a; a C. an; the D. the; the

九年级英语单选题简单题查看答案及解析

It is very kind ____ you to help me with these maths problems because it is very difficult ____ me to work them out.

A. of; for　　 B. of; of

C. for; of　　 D. for; for

九年级英语单项填空中等难度题查看答案及解析

It is very kind ____ you to help me with these maths problems because it is very difficult ____ me to work them out.

A. of; for　　　 B. of; of　　　　 C. for; of　　　　 D. for; for

九年级英语单项填空中等难度题查看答案及解析

— Look at the problem! 　　　　 it’s very difficult, 　　　　 I have worked it out.

— Good job.

A. Although; /        B. Because; so

C. Because; /        D. Although; but

九年级英语单项填空中等难度题查看答案及解析

He found　 　　　　　　 very difficult　 　　　　　 the math problem.

A.that；to solve　　 B.this；solving

C.it；to solve　　 D.it；solving

九年级英语单项填空简单题查看答案及解析

He found 　　　　　　 very difficult　　　　　　 the math problem.

A.that；to solve    B.this；solving

C.it；to solve    　 　 D.it；solving

九年级英语单项填空中等难度题查看答案及解析

He found 　　　　　　 very difficult 　　　　　　 the math problem．

A．that；to solve        B．this；solving

C．it；to solve        D．it；solving

九年级英语单项填空困难题查看答案及解析

Even the top students in our class can't work out this problem, so it be very difficult.

A. may　　 B. must　　 C. can　　 D. need

九年级英语单选题中等难度题查看答案及解析

We all want to know who can________the physics problem?You know，it’s very difficult．

A. work out

B. take out

C. set out

D. look out

九年级英语单选题中等难度题查看答案及解析