将直线y=3x向左平移6个单位得到直线l，求直线l与坐标轴围成的三角形的面积．

如何预防中暑？

Many new workers______and in six month they will be sent to build a new railway.

A．are being trained

B．are training

C．will train

D．will be trained

Last summer holidays, he went to the countryside and worked together with farmers.In this way

he learnt________from farmers .[      ]

A. a great many  

B. a great deal

C. scores of  

D. much more

DNA复制的特点（）。

A.单向复制

B.连续复制

C.全保留复制

D.有特定起点

E.由遗传密码控制

患者，男性，28岁。症见突然昏倒，不省人事，口噤拳握，呼吸气粗，或四肢厥冷，苔薄白，脉状或沉弦。

此患者应首选何方：（）

A.五磨饮子

B.四味回阳饮

C.通瘀煎

D.人参养营汤

E.导痰汤