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【单选题】
霍尔效应是指磁场作用于载流金属导体、半导体中的载流子时，产生（）的物理现象。A.
横向电位差
B.
纵向电位差
C.
横向电流
D.
纵向电流
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【简答题】Which material is mainly used in the dental implant nowadays?
【单选题】Nowadays the application of computer is mainly ( ).
A.
scientific computation
B.
data processing
C.
CAD
D.
CAM
【单选题】The section under the subheading “Getting from Goal to Priority” mainly tells us _____. A) how to set priorities and what should be done accordingly B) how different the three kinds of priorities can...
A.
how to set priorities and what should be done accordingly
B.
how different the three kinds of priorities can be
C.
the difficulty in finding a part-time job nowadays
D.
the importance of setting the goal for all students
【单选题】Nowadays we mainly program for PLC by ______.
A.
the special-purpose programming terminals
B.
the programming panels
C.
the personal computers connected to the PLC
D.
. the programming unit
【简答题】Nowadays, the mainly used database model by many DBMS, such as Access, SQLSever, MySQL, is .
【单选题】Nowadays we mainly program for PLC by ____.
A.
The special-purpose programming terminals
B.
The programming panels
C.
The personal computers connected to the PLC
D.
The programming unit
【单选题】Nearly two weeks passed_____the old man was able to explain what had happened to him.
A.
when
B.
till
C.
before
D.
while
【单选题】听力原文： Nowadays people build ponds mainly for fishing and swimming and for the pleasure of looking at water. No matter why the pond was built, one thing is certain: All kinds of plants and animals will...
A.
To fish.
B.
To swim.
C.
To give people the pleasure of looking at water.
D.
To produce water power.
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