杆件横截面积为0.1平方米，其材料的许用应力为60Mpa，该杆能承受的拉力为多少？
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首次明确了幼儿园在日本教育体制中的位置的法规是1926年日本文部省制定的（）.
用代谢调控理论解释为何用高丝氨酸缺陷型作为赖氨酸生产菌株。
Which two statements about the SQL Management Base (SMB) are true?（）
A. It contains only SQL profiles generated by SQL Tuning Advisor.
B. It stores plans generated by the optimizer using a stored outline.
C. It is part of the data dictionary and stored in the SYSAUX tablespace.
D. It is part of the data dictionary and stored in the SYSTEM tablespace.
E. It contains the statement log, the plan history, plan baselines, and SQL profiles.
交流市电电源标称电压为380V时，通常情况下UPS输入端电压变动允许范围为（）V。
A. 332—408
B. 323—418
C. 320—410
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