HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
like=>as
hard=>as hard
different=>different from
as=>x
the same => as
as => from
like => as
length => long
than => as
me => mine
this exercise is not easy
bravery
possibly
unhealthy
products
beuilt
patient
retirement
impatient
lower
unfortunateful-únuccessful
81
1 F
2 T
3 T
4 T
5 T
A=(5m2−8m2−9m2)(−n3+4n3)=−12m2.3n3=−36n5A=(5m2−8m2−9m2)(−n3+4n3)=−12m2.3n3=−36n5
Để A≥0≥0 thì n5≤0⇔n≤0
=8
1, 7 - 8 hours2, I sleep at 10 o'clock3, yes4, yes5, Sleep is very important because it helps us recover health6, I think old people should sleep more than children
có
SiO2+4HF→SiF4↑+2H2OSiO2+4HF→SiF4↑+2H2O
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