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为什么耙斗装载机钢丝绳应在滚筒上排列整齐，其磨损、断丝不得超过规定？

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股票的盈利性特征，还表现在股票持有者利用股票可以获取差价和保值。（）

A. 正确
B. 错误

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《（）》本是太平天国起义前“拜上帝会”的教规，后成为太平天国的军律。

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Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables: EMPLOYEES EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2 (25) LAST_NAME VARCHAR2 (25) HIRE_DATE DATE NEW EMPLOYEES EMPLOYEE_ID NUMBER Primary Key NAME VARCHAR2 (60) Which DELETE statement is valid? （）

A. DELETE FROM employees WHERE employee_id = (SELECT employee_id FROM employees);
B. DELETE * FROM employees WHERE employee_id = (SELECT employee_id FROM new_ employees);
C. DELETE FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = ('Carrey')'
DELETE * FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE last_ name = ('Carrey')'

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肱骨下1/3骨折，最简单实用正确的检查是（）

A. 肱骨下1/3部位CT
B. 肱骨全长的X线正侧位片
C. 肱骨下1/3为中心MRI
D. 肱骨下1/3为中心，包括肘关节的正侧位X线片
E. 肱骨下1/3正侧，斜位X线片

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