单选题女性生殖系统结核最多发生于

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单选题下列有关风湿病的描述，错误的是

单选题慢性萎缩性胃炎B型表现为

单选题下列不符合肾动脉粥样硬化的叙述是

单选题鉴别Graves病与自主性高功能性甲状腺腺瘤最有价值的检查是

单选题男性，45岁，上腹疼痛5年余，平卧时加重，弯腰可减轻，查体上腹轻度压痛，X线腹部摄片有胰区钙化，可能的诊断是

单选题A．依地酸二钠钙B．亚甲蓝C．二巯基丁二酸D．纳洛酮

单选题目前认为扩张型心肌病最主要的病因是

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单选题男性，67岁，发现高血压20年，近日活动后胸闷气短，心电图显示左室高电压，运动试验阴性，超声心动图检查左室射血分数56％。该患者可能发生了

单选题男性，60岁，间断咳嗽、咳痰10年，胸闷、活动后气短6年。

单选题动脉血H + 浓度升高主要通过外周化学感受器兴奋呼吸，其主要原因是

单选题亚急性重型肝炎与急性重型肝炎的主要区别在是否有

单选题Researchers at the University of Arizona, led by Teresa Cummins, conducted an exploratory study on the online learning modules, designed to supplement hands-on classes taught by local experts and supported by an overview text, to help users increase their understanding of key concepts in the Arizona Master Watershed Steward program. They also sought to determine whether program participants would use the non-compulsory modules. Their evaluation revealed that module users increased their understanding of key watershed concepts; participants in the evaluation demonstrated a 30 percent increase in content knowledge following module use. Additionally, 70 percent of participants retained this knowledge through a two-month follow-up test. A follow-up survey showed that approximately half of the participants returned to the online modules on their own; several of these users returned several times and spent multiple hours per session. Comments from the follow-up survey suggested that the users accessed the site either as they had the time or as they needed the information. Online usage statistics indicated participants continued to visit the site for many months following the modules' release and advertisement. Though many visits were very brief (a single pageview; only a couple of seconds), visitors with many returns to the site and/or long visits appeared to be working through the modules. One participant stated, "My brain can only hold so much information; the modules keep information on-hand." Other participants commented that the modules were "more interesting and interactive" than the text material, and a "very effective tool" and "a great resource to the Master Watershed Steward community." The Arizona Master Watershed Steward program, sponsored by University of Arizona, prepares adults to serve as volunteers in the conservation of water resources and the protection, restoration, and monitoring of their watersheds. The modules were intended to reinforce concepts covered in classes and further engage participants in the learning process. One key finding was that the modules were not clearly preferred by users over in-person instruction. One participant stated, "For me, they are just another avenue for learning, a supplement or additional reference. I prefer in person and real hands-on learning." Other participants similarly expressed their desire for hands-on and face-to-face interaction. Several participants noted that the usefulness of in-person lectures—was a function of the presenter. Overall, the exploratory evaluation indicated that the modules were a welcome supplement to the course and were effective in reinforcing key concepts. Participants retained knowledge for several weeks, although since subjects were self-selected, they may have been self-motivated to pay attention and master the online module materials. "I am constantly searching for new ways to educate our program's diverse audiences and reinforce watershed science concepts, " says Candice Rupprecht, state coordinator for the Master Watershed Steward program. "I am excited to know that online learning modules can enhance our program by offering additional independent learning opportunities for our volunteers./

单选题早期胃癌的病理诊断标准是癌组织