皮皮学，免费搜题
登录
搜题
【判断题】
平行极化波斜入射时,对分界面而言,磁场强度只有切向分量,没有法向分量。
A.
正确
B.
错误
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】Which statement is not true about this study?
A.
The study still needs further research before arriving at some solid conclusion.
B.
The study does not seem to support the global teenager hypothesis.
C.
The study shows some cultural difference among the countries.
D.
The study confirms researchers’ guesses about the global teenager culture.
查看完整题目与答案
【单选题】合金液体的浇注温度越高,液态合金的流动性越 ,合金的收缩率越 。选()。
A.
好 、小
B.
好、大
C.
差、大
D.
差、小
查看完整题目与答案
【单选题】Replace the underlined words with the correct form of the words below. He’s a good manager of people, but he lacks the ability to plan for the future .
A.
lean
B.
occasionally
C.
particularly
D.
rub
E.
sum
F.
suspicion
G.
vision
查看完整题目与答案
【单选题】关于液态金属在凝固过程中形成缩孔和缩松的倾向,正确的说法是( )
A.
结晶温度范围窄的合金，形成缩松的倾向性较大
B.
结晶温度范围宽的合金，形成缩孔的倾向性较大
C.
形成缩孔和缩松的原因是液态收缩大于凝固收缩
D.
浇注温度越高，形成缩孔和缩松的体积越大
查看完整题目与答案
【判断题】浇注温度越高,金属的液态收缩越大,总体收缩也越大。
A.
正确
B.
错误
查看完整题目与答案
【单选题】He’s a good manager of people, but he lacks (the ability to plan for the future).
A.
lean
B.
occasionally
C.
particularly
D.
rub
E.
sum
F.
suspicion
G.
vision
查看完整题目与答案
【判断题】浇注温度越高,液态收缩越大。
A.
正确
B.
错误
查看完整题目与答案
【判断题】铸造时需要考虑合金的收缩率，收缩率与浇注时液态金属的温度有关，浇注温度越高收缩率越大。
A.
正确
B.
错误
查看完整题目与答案
【单选题】He’s a good manager of people, but he lacks the ability to plan for the future.
A.
vision
B.
leaned
查看完整题目与答案
【单选题】浇注温度越高，则()收缩越大。
A.
凝固
B.
液态
C.
固态
D.
凝固和固态
查看完整题目与答案
相关题目：
【单选题】Which statement is not true about this study?
A.
The study still needs further research before arriving at some solid conclusion.
B.
The study does not seem to support the global teenager hypothesis.
C.
The study shows some cultural difference among the countries.
D.
The study confirms researchers’ guesses about the global teenager culture.
查看完整题目与答案
【单选题】合金液体的浇注温度越高,液态合金的流动性越 ,合金的收缩率越 。选()。
A.
好 、小
B.
好、大
C.
差、大
D.
差、小
查看完整题目与答案
【单选题】Replace the underlined words with the correct form of the words below. He’s a good manager of people, but he lacks the ability to plan for the future .
A.
lean
B.
occasionally
C.
particularly
D.
rub
E.
sum
F.
suspicion
G.
vision
查看完整题目与答案
【单选题】关于液态金属在凝固过程中形成缩孔和缩松的倾向,正确的说法是( )
A.
结晶温度范围窄的合金，形成缩松的倾向性较大
B.
结晶温度范围宽的合金，形成缩孔的倾向性较大
C.
形成缩孔和缩松的原因是液态收缩大于凝固收缩
D.
浇注温度越高，形成缩孔和缩松的体积越大
查看完整题目与答案
【判断题】浇注温度越高,金属的液态收缩越大,总体收缩也越大。
A.
正确
B.
错误
查看完整题目与答案
【单选题】He’s a good manager of people, but he lacks (the ability to plan for the future).
A.
lean
B.
occasionally
C.
particularly
D.
rub
E.
sum
F.
suspicion
G.
vision
查看完整题目与答案
【判断题】浇注温度越高,液态收缩越大。
A.
正确
B.
错误
查看完整题目与答案
【判断题】铸造时需要考虑合金的收缩率，收缩率与浇注时液态金属的温度有关，浇注温度越高收缩率越大。
A.
正确
B.
错误
查看完整题目与答案
【单选题】He’s a good manager of people, but he lacks the ability to plan for the future.
A.
vision
B.
leaned
查看完整题目与答案
【单选题】浇注温度越高，则()收缩越大。
A.
凝固
B.
液态
C.
固态
D.
凝固和固态
查看完整题目与答案