HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
Oxit nào sau đây là oxit lưỡng tính
A. FeO
B. CrO
C. Cr 2 O 3
D. CrO 3
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
Can we fix the current computer system, or would it be better to start from scratch with a new system?
A. from the beginning to the end
B. completely from the beginning
C. from the end
D. from head to toe