第19题: [单项选择](In spite of) the ever-increasing exploitation of natural resources, (that) has now reached dangerous proportion, (little) has been done on a (world-wide) scale to slow down or stop this process. A. In spite of B. that C. little D. world-wide 参考答案:B 答案解析:应为which。非限定定语从句不能用that引导。
第25题: [单项选择]患儿3岁,1小时前因其母牵拉右前臂哭闹不安,不肯右手持物。查体:右上肢无畸形,右肘部轻度压痛,无明显肿胀,X线检查(-)。最可能的诊断是 A. 肘关节损伤 B. 肱骨髁上无移位骨折 C. 肱骨髁间无移位骨折 D. 桡骨小头半脱位 E. 肘部肌肉肌腱损伤 参考答案:D 答案解析:[解题思路] 桡骨小头半脱位(或称Mal-gaine半脱位)多见于5岁以下儿童,多由于手腕和前臂被牵拉所致,又称牵拉肘。