một khu đất có diện tích là 2ha. người ta lấy 2/3 diện tích để trồng cây ăn quả. 5/10 diện tích khu đất đào ao thả cá. diện tích còn lại để trồng rau. hỏi có bao nhiêu mét vuông để trồng rau

x^2+6x+12=9 x^2+12x+70=15 x^4+3x^3+2x^2+x+1=0 20x^5+7x^6+4x^3=0

fill the blanks with usually sometimes or never 1 always 2............ 3............ 4 rarely 5 ............

Giúp mình với ạ, mình đang cần gấp, mình cảm ơn nhiều ạ

Bài phân tích vẻ đẹp của nhân vật chị Dậu trong đoạn trích tức nước vỡ bờ

Cho tam giác ABC vuông tại A có AB= 8 cm, AC = 6 cm. Gọi M,N,P lần lượt là trung điểm AB, AC, BC. a) Tính BC, MP b) Chứng minh MNCP là hình thang Vẽ hình + làm bài

75. Most studies ____ that acupuncture does not reduce nausea and vomiting caused by radiation therapy. A. are shown B. were shown C. have shown D. have been shown 76. Acupuncture may not ____ if you have low white blood cell counts or low platelet counts. A. recommend B. recommended C. is recommended D. be recommended Exercise 7. Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions. 77. Despite of its general safety, acupuncture isn’t for everyone. A B C D 78. Look at the dark clouds. I’m sure it will rain soon. A B C D 79. Acupuncture is one of the oldest medical treatment in the world. A B C D 80. Many accidents is caused by careless driving. A B C D 81. She was gave a box full of chocolate. A B C D 82. Measles are an infectious disease that causes fever and small red spots. A B C D 83. Alternative therapies often dismiss by orthodox medicine because they are sometimes administered by A B C people with no formal medical training. D 84. The practice of acupuncture is rooted in the idea of promoting harmony among human and the world around A B C them. D 85. Human infants born with about 270 bones, some ot which fuse together as their body develops. A B C D 86. More research is needed to find out if acupuncture is helped with other side effects such as pain, anxiety or A B C D shortness of breath. 87. A man with advanced prostate cancer is believed to cured after doctors shocked his tumour to death with A B C D huge amounts of testosterone. 88. Norovirus is a common stomach bug. It also called the Winter Vomiting Bug because it is more prevalent in A B C D winter. 89. You can be put yourself at risk if you don't usually get many physical activities and then all of a sudden do A B C vigorous-intensity aerobic activity, like shovelling snow. D 90. Although the research is not yet final, some findings suggest that your risk of endometrial cancer and lung A cancer may be lower if you get regular physical activity is compared to people who are not active. B C D

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