题目内容

生长激素缺乏症(GHD)是由下述哪种原因引起

A. 垂体前叶功能不足
B. 下丘脑功能不全
C. 生长激素分子结构异常
D. 生长激素受体缺陷
E. 生长激素样生长因子受体缺陷

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阅读理解三Directions：Thefollowing is a business Letter. After reading it, youshould complete the followinginformation by filling in the blanks marked 46 through 50 in no more than 3 wordsin the table below.Dearsir,We welcome your enquiryof January 11th and thank you for your interest in our embroidered(刺绣) linen(亚麻) products.As you may be wellaware, we are a state-operated corporation handling this line of business formany years. So we are in the good position to serve our customers with the mostreliable quality of the linen you suggested. We can make products according to the given design and produce the designed goods on large quantities.We are enclosing ourillustrated catalogue giving the details you ask for. Also we are sending you afull range of samples and, when you have a chance to examine them, wefeel confident that you will agree that the quality of material used and the high standard of workmanship will appeal to the most selective buyers.We hope the catalogueand samples will reach you in time and look forward to your order.YourstrulyABCLtd.Recommendationof productsProductsof ABC Ltd. ：_1Company kind of ABC Ltd. 2_Characteristicsof products of ABC Ltd.：Products can be made on the basisof3and in large quantities,Thes amples will appeal to the most selective buyers because of the4and the high5___.

关于尺寸标注命令——“线性”，以下说法正确的是：

A. “线性”命令只能标注水平放置的尺寸
B. “线性”命令只能标注竖直放置的尺寸
C. “线性”命令可以标注水平放置和竖直放置的尺寸
D. “线性”命令可以标注任意角度放置的尺寸

使用尺寸标注命令——“对齐”标注尺寸，以下说法正确的是：

A. “对齐”命令只能标注竖直放置的尺寸
B. “对齐”命令只能标注水平放置的尺寸
C. “对齐”命令只能标注倾斜放置的尺寸
D. “对齐”命令可以标注任意角度放置的尺寸

标注线性尺寸时，我们可以不使用系统自动测量的尺寸值，而是通过命令的子选项改变尺寸数字，该子选项是：

A. T
B. A
C. H
D. R