皮皮学，免费搜题
登录
搜题
【简答题】
生物性污染主要包括 、 _ 和昆虫等。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The reason why these men committed suicide is that ______.
A.
they felt they dishonored the family name
B.
they couldn't find gainful employment because of their age after losing their job
C.
they were afraid of being old
D.
Both A and B.
【单选题】Olive oil prepared in a small Italian oil press factory and sold by large supermarkets in the United States is an example of a ________.
A.
net national product
B.
U.S. export
C.
U.S. import
D.
gross domestic product
【单选题】He felt it strange ______ she would be late for class.
A.
that
B.
which
C.
when
D.
why
【单选题】Why did the professor study the Brazilian students' behavior?
A.
He felt puzzled at the students' being late.
B.
He felt angry at the students' rudeness.
C.
He wanted to make the students come on time later.
D.
He wanted to collect data for one of his studies.
【简答题】(explore) Domestic oil ________ and gasoline prices are emerging as important issues in the presidential campaign.
【单选题】The reason _______ he felt frustrated was ______ he lost his MP4.
A.
why/that
B.
that/why
C.
why/because
D.
that / because
【单选题】It is helpful to illustrate these points by looking at the case of the United States, precisely because 3.__________. Coal, copper, iron, silver, and nickel are just a few of the natural resources the...
A.
countries need to - or choose to import at least some goods and services
B.
different countries have comparative advantages on different products
C.
exports are also more than just an outlet for “ excess ” production
D.
it has the capability of producing the goods or supplying the services
E.
it comes closer to being self-sufficient than most other countries
F.
sell goods or services to other countries at prices higher than the prices
【单选题】以下关于窗体的描述中,错误的是(
A.
执行Unload Forml语句后,窗体Forml消失,但仍在内存中
B.
窗体的Load事件在加载窗体时发生
C.
当窗体的Enabled属性为False时通过鼠标和键盘对窗体的操作都被禁止
D.
窗体的Height、Width属性用于设置窗体的高和宽
相关题目：