[单项选择]橄榄桥脑小脑萎缩MRI特点为（）
A. 脑组织信号和体积均为异常。 
B. 脑组织信号和体积均为正常。 
C. 脑组织信号正常，但体积正常。 
D. 脑组织信号正常，但体积增大。 
E. 脑组织信号正常，但体积缩小。 

假定用下面的语句打开文件：
Open "File1.Txt" For Input As #1
则不能正确读文件的语句是（）。

Have you ever wondered where these cute little teddy bears came from They were named for President Theodore Roosevelt in 1902. President Roosevelt was on a hunting trip in Mississippi when members of the hunting party caught a black bear and tied him to a tree. President Roosevelt was called to the area to shoat the bear, which he refused to do and said it was a shame and showed poor manners.
The Washington Post newspaper ran a cartoon showing the President refusing to shoot the bear and people all over America saw the cartoon. Morris Michtom, a shopkeeper in Brooklyn, New York, placed two toy bears in the window of his shop. Mr. Michtom requested permission from the President to call them "Teddy Bears". The sweet little sweet bears with shiny button eyes were a delight with children everywhere. The Teddy Bears were made by Mr. Michtom’s wife. Mr. Michtom formed a new business called the Ideal Novelty and Toy Corporation.
Today, Teddy Bears
A. Teddy Bears can be found in museums.
B. The first Teddy Bear was made by Mr. Mitehtom’s wife.
C. President Roosevelt shot the black bear in 1902.
D. People collect Teddy Bears.