皮皮学，免费搜题
登录
搜题
【单选题】
可吸入颗粒物是指粒径为多大的颗粒物（）A.
粒径≤0.4μm
B.
粒径≤1μm
C.
粒径≤2μm
D.
粒径≤5μm
E.
粒径≤10μm
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】为保证选区精度，选区衍射时要求：
A.
选区光栏面、物镜的物平面和中间镜的物平面三者重合
B.
选区光栏面、物镜的像平面和中间镜的像平面三者重合
C.
选区光栏面、物镜的像平面和中间镜的物平面三者重合
D.
选区光栏面、物镜的物平面和中间镜的像平面三者重合
【单选题】Parents and students are now relying less on taking out loans and more on grants, scholarships and their own income and savings, according to a new report from Sallie Mae. 'Over the last few years the...
A.
Apart from
B.
Instead of
C.
Regardless of
D.
Because of
【单选题】某企业在年初用银行存款支付本年租金120 000元,于1月末仅将其中的10 000元计入本月费用,这符合()。
A.
收付实现制原则
B.
权责发生制原则
C.
谨慎性原则
D.
历史成本计价原则
【单选题】某企业现在将 1 000 元存入银行,年利率为8%,复利计算,5 年后企业可以从银行取出( )元。
A.
1 400
B.
1452.6
C.
1 469
D.
1 685.1
【简答题】Families in China attach great importance to the education of their children. My parents think that they should work hard to ensure their children will get a good education. They are willing to spend ...
【简答题】Now parents are 花费 more and more on their Children,s education.
【单选题】Parents are now more likely to give their children unique names, rather than_______ones.
A.
popular
B.
normal
C.
usual
D.
standard
【单选题】Pushy parents are _____ new, but now parents seem to push their children a lot more.
A.
something
B.
nothing
C.
anything
D.
everything
【单选题】Parents today are more nervous about their kids’ safety than previous generations because________.
A.
there are now fewer children in the family
B.
the number of traffic accidents has been increasing
C.
their fear is amplified by media exposure of crime
D.
crime rates have been on the rise over the years
相关题目：