If H2 burn in O2, we can get _____.
#29282
A
H2
B
H2O
C
O2
D
H2O2
推荐题目
—Excuse me, is this ________ new pencil sharpener? —Yes, it’s ________. He bought it just now.
#27719
A
Tom’s; his
B
Tom; his
C
Tom’s; hers
D
Tom’s; yours
There are two _______ and six _______ in the zoo.
#29227
A
kangaroos; wolfs
B
kangaroos; wolves
C
kangarooes; wolves
D
kangarooes; wolfs
— Shall we go out for a walk?— Sorry. This is not the right _______ to invite me. I am too tired to walk.
#28914
A
moment
B
plan
C
place
D
way