Talking ____ (mend) no holes.
Talking ____ (mend) no holes.
In each cylinder cover there are two or three holes for （）
In each cylinder cover there are two or three holes for （）
中国大学MOOC: There are some invisible dead stars called black holes.
中国大学MOOC: There are some invisible dead stars called black holes.
To any P-type semiconductor, the number of holes ( ) the number of free electrons
To any P-type semiconductor, the number of holes ( ) the number of free electrons
I would like ________ more articles about blue holes. A: read B: to read C: reading
I would like ________ more articles about blue holes. A: read B: to read C: reading
中国大学MOOC:"Why do scientists know black holes exist?";
中国大学MOOC:"Why do scientists know black holes exist?";
In semiconductor physics, positive holes(空穴) are treated as if they were positively charged electrons.
In semiconductor physics, positive holes(空穴) are treated as if they were positively charged electrons.
Please correct the following sentences. 1.The houses were mere shanties, and rags were stuffed in the cracks and holes.
Please correct the following sentences. 1.The houses were mere shanties, and rags were stuffed in the cracks and holes.
Instantly, from the dark holes all round, there was a frenzied rush of Jews. (Para. 10)
Instantly, from the dark holes all round, there was a frenzied rush of Jews. (Para. 10)
The most______(convince)evidence of black holes comes from research into binary star systems.
The most______(convince)evidence of black holes comes from research into binary star systems.