Given： Which code， inserted at line 16， will cause a java.lang.ClassCastException？（） Alpha a = x；。 Foo f = （Delta）x；。 Foo f = （Alpha）x；。 Beta b = （Beta）（Alpha）x；。
（）式头花是将花材做成三角形的头花造型。 花环。 鬓边。 皇冠。 头箍。
减压阀的作用为（）。 将较高的气（汽）压自动降低到所需的低气（汽）压。 低压侧气（汽）压随高压侧气（汽）压变化成比例降低。 当高压侧气（汽）压波动时能自动使用低压侧气（汽）压稳定。 可以反向使用作为增压阀。
Click the Exhibit button to examine the structure of the EMPLOYEES, DEPARTMENTS, and LOCATIONS tables. Two new departments are added to your company as shown: DEPARTMENT_ID DEPARTMENT_NAME MGR_ID LOCATION_ID 9998 Engineering 123 9999 Administrative Boston You need to list the names of employees, the department IDs, the department names, and the cities where the departments are, even if there are no employees in the departments and even if the departments are not yet assigned to a location. You need to join the EMPLOYEES, DEPARTMENTS, and LOCATIONS tables to retrieve this information. Which statement do you execute to retrieve this information?（） SELECT e.last_name, d.department_id, d.department_name, l.city FROM departments d RIGHT OUTER JOIN employees e ON d.department_id = e.department_id RIGHT OUTER JOIN locations l ON d.location_id = l.location_id;。 SELECT e.last_name, d.department_id, d.department_name, l.city FROM departments d FULL OUTER JOIN employees e ON d.department_id = e.department_id FULL OUTER JOIN locations l ON d.location_id = l.location_id;。 SELECT e.last_name, d.department_id, d.department_name, l.city FROM departments d LEFT OUTER JOIN employees e ON d.department_id = e.department_id LEFT OUTER JOIN locations l ON d.location_id = l.location_id;。 SELECT last_name, department_id, department_name, city FROM departments d NATURAL JOIN employees e NATURAL JOIN locations l。
公安机关办理治安案件，对（），可以扣押。 被侵害人合法占有的财产。 善意第三人合法占有的财产。 与案件有关的需要作为证据的物品。 与案件有关的需要作为证据的文件。
问一女病人年龄时，病人答到：“二十二，二月初二生，二八月乱穿衣，衣服脏了没人洗，洗衣机是我买的，我属猴”你认为这个回答说明病人有下列何症状（）
