Trường hợp nào sau đây là nguồn âm:

A. Mặt trống khi gõ

B. Dây đàn ghi ta khi được gảy

C. Âm thoa khi gõ mõ

D. Tất cả trường hợp trên là nguồn âm

Câu trả lời:

2093520 la dung,minh vua thi xong

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Câu trả lời:

1. This year, more girls are expected to enrol in the first grade. 2. Many young people are not interested in sports. I have to force my sons to play tennis or go swimming. 3. The Vietnamese government has done a lot to eliminate hunger and poverty. 4. We do not allow any kind of discrimination against women and girls. 5. Our family members have equal rights and responsibilities. 6. Most parents don’t want to find out the gender of their babies before birth.