问题
单项选择题
以下哪种细胞材料没有核结构（）
A、幼年白细胞
B、成熟白细胞
C、幼年红细胞
D、成熟红细胞
答案
参考答案：D
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以下哪种细胞材料没有核结构（）
A、幼年白细胞
B、成熟白细胞
C、幼年红细胞
D、成熟红细胞
参考答案：D
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Wen Feng Store Sale
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| 1. In all goods, _____ is (are) cheap (便宜). A. bag B. shoes C. hat D. socks 2. Jack wants to buy tow pairs of (两双) socks, one bag and two hats. How much are they? A.Twenty- one yuan. B. Nineteen yuan. C. Eighteen dollars. D. Nineteen dollars. 3. Mary only likes blue, so (因此) she will buy _____. A. socks and bag B. pants and sweater C. hat and bag D. shoes and hat 4. The store has hat in _____. A. all colors B. blue, white and black C. blue and black D. white and blue 5. Peter has twenty dollars, so what can he buy? A. Two bags and one T-shirt. B. Three hats and two bags. C. One sweater and two pairs of socks. D. One T-shirt and one bag. |