Hệ thống sống được tổ chức theo nguyên tắc nào?
A.Nguyên tắc thứ bậc từ thấp đến cao
B.Nguyên tắc thứ bậc từ nhỏ bé đến to lớn
C.Đáp án khác
D.Nguyên tắc thứ bậc từ đơn giản đến phức tạp

Choose the word whose underlined part differs from the other three in pronunciation
A.helped
B.loved
C.joined
D.wronged

Choose the word whose underlined part differs from the other three in pronunciation
A.walked
B.lied
C.chopped
D.clicked

Choose the word whose underlined part differs from the other three in pronunciation
A.walked
B.stopped
C.tried
D.talked

Choose the word whose underlined part differs from the other three in pronunciation
A.away
B.pearl
C.occur
D.among

Choose the word whose underlined part differs from the other three in pronunciation
A.cheated
B.talked
C.twisted
D.hurted

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
In the past, robots had a minor_____. They could do very simple things.
A.work
B.place
C.thing
D.role

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
In the future, robots will ________ an important role. They will do many things like humans.
A.take
B.do
C.play
D.make

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
It’s his turn to _______the laundry today.
A.do
B.make
C.take
D.get

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
_________ robots can teach students in class.
A.Worker
B.Teaching
C.Doctor
D.Home