The criteria of vowel description.

In the production of vowels, there is no obstruction of air as is the case with consonants. Therefore, the description of the vowels cannot be done along the lines of the description of the consonants. To get out of this problem, vowels are normally described with reference to the following criteria:
(A)The part of the tongue that is raised-front, center, or back;
(B)The extent to which the tongue rises in the direction of the palate. Normally, three or four degrees are recognized: high, mid (often divided into mid-high and mid-low) and low;
(C)The kind of opening made at the lips-various degrees of lip rounding or spreading;
(D)The position of the soft palate-raised for oral vowels, and lowered for vowels which have been nasalized;
(E)The opening of the mouth-close, semi-close, semi-open, open;
(F)The length of the sound-long, short.

About the spleen, the right description is （）.

A:it is situated in the left lower part of thoracic cavity B:its long axis is in the line of the 10th rib C:it is palpable below the left costal arch D:there are splenic notches on its anterior extremity E:the hilum of spleen lies on the diaphragmatic surface

About the spleen, the right description is （）.

A:it is situated in the left lower part of thoracic cavity B:its long axis is in the line of the 10th rib C:it is palpable below the left costal arch D:there are splenic notches on its anterior extremity E:the hilum of spleen lies on the diaphragmatic surface

About the spleen, the right description is （）.

A:it is situated in the left lower part of thoracic cavity B:its long axis is in the line of the 10th rib C:it is palpable below the left costal arch D:there are splenic notches on its anterior extremity E:the hilum of spleen lies on the diaphragmatic surface

The description of currency of the Germany is ( ).

A:Danish Krone B:Deutsche Mark C:Cuban Peso D:Dutch Florin Guider

The description of curency of the Netherlands is （）.

A:Danish Krone B:Deutsche Mark C:Cuban Peso D:Guilder