问题
单项选择题
目前血浆蛋白质定量的参考方法为()
A．考马斯亮蓝染色法
B．凯氏定氮法
C．磺柳酸法
D．盐析法
E．双缩脲比色法
答案
参考答案：B
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目前血浆蛋白质定量的参考方法为()
A．考马斯亮蓝染色法
B．凯氏定氮法
C．磺柳酸法
D．盐析法
E．双缩脲比色法
参考答案：B
| 阅读下面的几则寻物及招领启示，从每题的A、B、C三个选项中，选出最佳选项回答问题。 | |
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| 1. What color is Tom's pencil case? A. Yellow and white. B. Yellow and blue. C. Blue and white. 2. found a black backpack and her number is . A. Jerry , 487-2635. B. Mary , 486-5956. C. Lily , 498-2456. 3. Please call . She found(找到) a yellow and white cat. A. Lisa B. Mary C. Jim 4. lost his school ID card and found an English book. A. Jerry , Jim B. Jim , Jerry C. Lily , Lisa 5. —I lost my keys. It's a set of keys. —Call at . She found a set of keys. A. Jim , 5307534 B. Lily , 4982456 C. Tom , 4569800 |