皮皮学，免费搜题
登录
搜题
【简答题】
金属的铸造性能主要包括 和收缩性。
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】If you don't work ______ enough, I don't think your dream will come ______. [ ]
A.
hardly; truly
B.
hardly; true
C.
hard; true
D.
hard; truly
【单选题】Woman: Don't you think this candle light dinner is romantic? Man: Sure, at least I don't have to look at the food. Question: What does the man think of the food?
A.
It's a pity he can't see what he is eating.
B.
It is very romantic.
C.
It doesn't look very delicious.
D.
It is nice.
【简答题】要使晶体三极管工作在放大区,必须给其发射结加( )电压,而给集电结加( )电压。对于NPN型三极管,工作在放大区时其三个电极的电位U E ,U B ,U C 之间的关系为:( )>( )>( )。
【单选题】you don ’ t li ke h i m i s none of m y bu s i n e ss . A . W h a t B . T h a t C . W ho D . H ow
A.
W h a t
B.
T h a t
C.
W ho
D.
H ow
【多选题】工程项目安全检查监督中的季节性检查包括（）。
A.
春季风大，要着重防火、防爆
B.
针对特种作业、特种设备、特殊场所进行的检查
C.
夏季高温要着重防暑、降温
D.
锅炉压力容器的检查
E.
冬季着重防寒、防冻等
【简答题】在windows 7中,下列文件名,正确的是A. My file1.txt B. file1/ C. A D. A>B.DOC
【单选题】I ______any water ______ bread in the fridge.
A.
don’t have, and
B.
have, and
C.
don’t have, or
D.
am not have, or
相关题目：