疟疾发作具有周期性，其间歇期时长取决于（） A.侵入的子孢子数量 B.子孢子在肝 发布时间：2017-05-24 01:58 │ 来源：www.tikuol.com 题型：单项选择题 问题： 疟疾发作具有周期性，其间歇期时长取决于（）A.侵入的子孢子数量 B.子孢子在肝细胞内的发育时间 C.裂殖体在红细胞内的发育时间 D.机体免疫力 E.疟原虫毒力强弱
题型：单项选择题 完形填空。 There is a big park near my home. It is big and beautiful. In the park, there are many 1 and trees. In spring, when flowers come out (开放), the park looks very beautiful. People all like to 2 there. In the morning, many people take exercise there. Students like to 3 books there. After 4 , people like to take a walk there with their friends or families. There are many benches (长椅) for people to sit on when they 5 tired. Today is Sunday. There are many 6 in the park. Jim and his friends chat 7 the big tree. Lucy and Lily walk and talk about 8 interesting film. There is a lake 9 the park. Some children swim in the lake, and others fish there. They all have a 10 time. ( ) 1. A. books ( ) 2. A. eat ( ) 3. A. read ( ) 4. A. breakfast ( ) 5. A. am ( ) 6. A. child ( ) 7. A. to ( ) 8. A. a ( ) 9. A. in the middle of( ) 10. A. well B. flowers B. work B. say B. the lunch B. are B. childs B. on B. an B. in middle of B. bad C. food C. play C. tell C. a supper C. is C. childrens C. under C. the C. at the frontC. good D. water D. sleep D. talk D. supper D. be D. children D. from D. any D. over D. sad 查看答案
题型：单项选择题 在绘制故障树时，下层事件R1和R2同时发生才会引起上层事件A的发生；反之，下层事件有一个不发生，A也不发生，则应使用______表示三者的逻辑关系。A．或门B．与门C．与或门D．非门 查看答案
题型：单项选择题 下列哪种情况无需进行联合药敏试验（）A.对单一抗菌药物不敏感B.对某抗菌药仅轻度敏感，该药有毒性不能大量应用C.某抗菌药大量使用，但在血中无法达到有效浓度D.延长耐药菌株的产生E.对某抗菌药敏感 查看答案
题型：单项选择题 固定行车设备检查结果记入《行车设备检查登记簿》内。检查中发现问题，要及时解决；对危及行车安全的，须立即采取措施；当时不能解决的，要安排计划，限期完成，并进行复查；需要上级解决的，要按程序上报。 查看答案
题型：单项选择题 正确识别风险点、非风险点、敏感点和权衡点是进行软件架构评价的关键步骤。其中（1）是实现一个特定质量属性的关键特征，该特征为一个或多个软件构件所共有。"改变加密的级别可能会对安全性和性能都产生显著的影响"，这是一个对系统（2）的描述。空白（1）处应选择（）A.风险点B.非风险点C.敏感点D.权衡点 查看答案