HOC24
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Bài học
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Although this car appears to be manufactured by a different company, it has the same body style, size, and perform as that one.
A.appears
B.to be
C.different
D.perform
Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.
The Principal demanded that the heaters repair immediately. Winter is coming!
A. The
B. demanded
C. repair
D. is coming
Mark the letter A, B, C or D to indicate the word/phrases SIMILAR in meaning to the underlined word(s) in each of the following questions.
Species that have already lost habitat because of deforestation are given higher priority in the plan because of their greater risk of extinction
A. a thing that you do often and almost without thinking
B. the place where a particular type of animal or plan is normally found
C. a subject that students don't understand
D. a theme that everyone likes to discuss
By the age of ten, Helen ______ Braille as well as the manual alphabet and even learned to use the typewriter
A. mastered
B. has mastered
C. had mastered
D. was mastering
Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
A. followed
B. exploited
C. packaged
D. reserved
Phép nhân có thừa số là 3 và 5, tích là 15 được viết thành biểu thức là:
A. 3 x 5 = 15
B. 3 + 5 = 15
C. 5 = 3 x 15
D. 3 x 5 x 15
Để 5 a k h ô n g ⋮ 6 thì
A. a ⋮ 6
B. a k h ô n g ⋮ 2
C. a ⋮ 3
D. a k h ô n g ⋮ 6
Cho đoạn thẳng AB = 5cm . Vẽ hai cung tròn (A;3cm) và (B;4cm). Gọi C là giao điểm hai đường tròn đó. Nối A, B, C. Dùng thước đo góc xác định số đo của A C B ^ .
Cho sơ đồ phản ứng Cr → + HCl X → + NaOH dư Y
Chất Y trong sơ đồ trên là
A. Na 2 Cr 2 O 7
B. NaCrO 2
C. Cr OH 3
D. Cr OH 2