有两根安全绳(包括未展开的缓冲器)的安全带,其单根有效长度不应大于()m。
A、5
B、4
C、3
D、1.2
参考答案:D
阅读理解。
Hello! My name is Linda. I am a Chinese girl. I am eight. I have many friends in my class. Mary is my
best friend. How old is she? She is eight, too. This is her cat. Its name is Dick. Can you spell Dick? Yes,
it's D-I-C-K. She and I like it very much.
根据短文内容判断句子正(T)误(F)。
( )1. Linda is an English girl.
( )2. Her best friend is Mary.
( )3. Mary is a student, too.
( )4. Dick is a dog's name.
( )5. Linda and Mary like Dick very much.
有关恶性肿瘤的临床表现,下列哪项是错误的()。
A.疼痛为初发症状
B.常易出血和形成溃疡
C.局部不一定扪及肿块
D.可出现淋巴道和血道转移
E.消瘦、乏力、发热常为晚期表现