Đề kiểm tra 15 phút Tiếng Anh 12 Thí điểm Học kì 2 (Đề 3)

Stars shine because of _______ produced by the nuclear reactions taking place

17/20

Stars shine because of _______ produced by the nuclear reactions taking place within them.

the amount of light and heat is

which the amount of light and heat

the amount of light and heat that it is

the amount of light and heat

Giải thích

Đáp án D