隧道洞口土石方开挖时，路基及仰坡边坡应自上而下开挖，仰坡边坡上的（）应全部清除，不留

被监视居住的犯罪嫌疑人、被告人违反应遵守的规定，情节严重的，应予以( )。

A．拘留
B．逮捕
C．拘传
D．取保候审

以下关于网上银行基金定期定投的说法正确的是（）。

A、定投“申购”的扣款日遇非基金开放日顺延至下一个基金开放日；扣款日顺延不得跨月。

B、定投“申购”的扣款日遇非基金开放日时当月不扣款。

C、定投“赎回”的赎回日遇非基金开放日顺延至下一个基金开放日；赎回日顺延不得跨月。

D、定投“赎回”的赎回日遇非基金开放日时当月不赎回。

This afternoon I was having a PE lesson while I fell down and hurt my foot. I was in greatly pain at that moment, but I tried to act as if nothing has happened until the class was over. Though I had difficulty walk back to my classroom, I still didn’t tell anyone but even refused the offer of help of my classmates. As result, the hurt in my foot became bad. Now I know I am wrong. We can tell others our need for help and accept his help. Some day we can help others in return for. In this way, we can get along to each other happily and peacefully.

磺酰脲类降糖药的作用机理是

A．在肠道内竞争性抑制葡萄糖苷酶，可降低多糖分解为葡萄糖
B．促进脂肪组织摄取葡萄糖，加速无氧糖酵解
C．刺激胰岛素α细胞释放胰岛素
D．刺激胰岛素β细胞释放胰岛素
E．体内转换成胰岛素

沙性土壤对马铃薯生长有什么影响？