在失语症的分类中,运动性失语症又称为()。
A.感受性失语症
B.表达性失语症
C.口语性失语症
D.皮质运动性失语症
E."口语领悟困难"
参考答案:B, C, D
Robert is said ___________ abroad, but I don’t know what country he studied in .
A.to have studied
B.to be studying
C.to study
D.to have been studying
下列金属的冶炼原理中不正确的是( )
A.2NaCl(熔融)2Na+Cl2↑
B.MgO+CMg+CO↑
C.Al2O3+3CO2Al+3CO2
D.2HgO2Hg+O2↑