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【单选题】
What can be said about the types of innovations throughout the centuries?A.
Many innovations are built upon or are improvements of earlier inventions.
B.
A lot of innovations became useless after a while.
C.
At first innovations were to help people; now they are just trendy.
D.
Innovations kept getting more expensive.
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举一反三
【单选题】C#中执行下列语句后,整型变量x和y的值分别为( )。 int x = 100; int y = ++x;
A.
x=100 y=100
B.
x=101 y=100
C.
x=100 y=101
D.
x=101 y=101
【单选题】In the past few months, a discussion ________about whether selecting “Three Goods” Students in elementary and middle schools should be cancelled.
A.
has to be held
B.
has been held
C.
has been holding
D.
was held
【单选题】听力原文： Once again in Richfield Heights today, there were no classes in the public elementary and secondary schools. This marks the eleventh day that the schools in that community have remained closed. ...
A.
Vacations.
B.
Wages.
C.
Overcrowded classrooms.
D.
Paid sick leaves.
【单选题】According to the passage a neutron star is ______.
A.
a gaseous cloud containing heavy elements
B.
an intermediate stage between an ordinary star and a supernova
C.
the residue that is left by a supernova
D.
the core of an ordinary star that houses the thermonuclear reactions
【单选题】听力原文：What is intercultural communication according to the speaker? (31)
A.
Language elements.
B.
Cultural differences.
C.
Something happens when people from another culture want to communicate.
D.
Practical problems in communications between different cultures.
【简答题】What is the passage mainly about? A) Different ways of treating socio-cultural elements in the three new English dictionaries. B) A comparison of people’s opinions on the cultural content in the three...
【单选题】执行下列语句：int x = 5, y; y = x / 2; 执行后变量y的数据类型和值分别为（ ）。
A.
int, 2.5
B.
int, 2
C.
double, 2.0
D.
double, 2.5
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