题目

.Many of them turned a deaf ear to his advice, __________ they knew it to be valuable. A. as if    B. now that C. even though      D. so that 答案：C。 解析: as if意为“好像”“似乎”，now that意为“既然”，even though意为“尽管”“虽然”，so that意为“为了”。比较四个选项，只有选C最合适。在一副三角板上，最小的角是 [     ]A．10°B．30°C．4°