一般化学品（试剂）应分类存放于柜内，室温保持在（）之间且避光通风。 A.5～30℃

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The weather is so ________ this year that we can hardly stand so many cold days!

A．wonderful

B．awful

C．absurd

D．accessible

________ you have to do the job, you should try your best to do it well even though it may be very difficult for you.

A．Since

B．While

C．Unless

D．Though

印花其他混纺棉牛津布

我国著名的黄金水道是（　　）

A．长江

B．黄河

C．松花江

D．珠江

肿瘤的组织形态介于良性肿瘤与恶性肿瘤之间

A．交界性肿瘤
B．癌肉瘤
C．多发性瘤
D．畸胎瘤
E．腺瘤